---
product_id: 692913481
title: "OpenJump Open Ear Headphones, Wireless Earbuds with Ergonomic Earhook, Hi-Res Sound, LDAC, 4 Mics ENC Call, 42H Playtime, Multipoint Connection, IPX7 Waterproof, Snug Fit for Workout, Running"
brand: "earfun"
price: "¥18026"
currency: JPY
in_stock: true
reviews_count: 8
category: "Ear Fun"
url: https://www.desertcart.jp/products/692913481-openjump-open-ear-headphones-wireless-earbuds-with-ergonomic-earhook-hi
store_origin: JP
region: Japan
---

# 42H playtime IPX7 waterproof Hi-Res LDAC sound OpenJump Open Ear Headphones, Wireless Earbuds with Ergonomic Earhook, Hi-Res Sound, LDAC, 4 Mics ENC Call, 42H Playtime, Multipoint Connection, IPX7 Waterproof, Snug Fit for Workout, Running

**Brand:** earfun
**Price:** ¥18026
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your workout soundtrack without missing a beat or a step!

## Quick Answers

- **What is this?** OpenJump Open Ear Headphones, Wireless Earbuds with Ergonomic Earhook, Hi-Res Sound, LDAC, 4 Mics ENC Call, 42H Playtime, Multipoint Connection, IPX7 Waterproof, Snug Fit for Workout, Running by earfun
- **How much does it cost?** ¥18026 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/692913481-openjump-open-ear-headphones-wireless-earbuds-with-ergonomic-earhook-hi)

## Best For

- earfun enthusiasts

## Why This Product

- Trusted earfun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stay Connected & Aware:** Open-ear design lets you enjoy music while staying alert to your surroundings—perfect for urban workouts and runs.
- • **Crystal-Clear Calls Anywhere:** 4 AI-enhanced beamforming mics with noise cancellation ensure your voice is heard loud and clear, even in noisy environments.
- • **All-Day Comfort, Zero Pressure:** Ergonomic open-ear design with adjustable earhooks for a secure, breathable fit that keeps you moving without fatigue.
- • **Immersive Hi-Res Audio Experience:** Powered by 14.2mm wool composite drivers and LDAC codec, delivering deep bass and crystal-clear highs for rich, natural sound.
- • **Unstoppable Battery & Multipoint Magic:** 42 hours total playtime with quick charge and Bluetooth 5.3 multipoint connection keeps you powered and seamlessly connected to two devices.

## Overview

The OpenJump Open Ear Headphones combine ergonomic comfort with advanced Hi-Res LDAC audio, AI-powered 4-mic call clarity, and an ultra-long 42-hour battery life. Featuring IPX7 waterproofing and Bluetooth 5.3 multipoint connectivity, these wireless earbuds are engineered for active professionals who demand premium sound, safety, and seamless device integration during workouts and daily commutes.

## Description

desertcart.com: EarFun OpenJump Open Ear Headphones, Wireless Earbuds with Ergonomic Earhook, Hi-Res Sound, LDAC, 4 Mics ENC Call, 42H Playtime, Multipoint Connection, IPX7 Waterproof, Snug Fit for Workout, Running : Electronics

Review: Unbelievable Value and Quality - These are it! - I bought these after days and days of wireless headphone reviews on Youtube and Tik Tok. I will say these have blown me away. Now as a disclaimer - I wasn't looking for the best quality headphone to begin with. I was looking for an affordable headphone specifically for running and some in gym workouts and I didn't see a reason to buy an over the top headphone to get sweaty in. I wasn't shopping for sound quality either as I have a pair of Apple Airpod Max's which I am content with in every other scenario. But when I tell you that these headphones exceeded my expectations from every aspect I truly am impressed. I knew I didn't want true in ear headphones (especially for running) and these I found to be a very comfortable and fine blend of right on the ear comfortably. I've had soundshocks (bone conduction) and Air conduction headphones - these ones are air conduction which I actually prefer - especially with higher volume or more vibrational/bass pumping songs or audio (podcasts on loud are not ideal feeling on bone conduction - too much vibration). They feel and fit comfortably in my ear, they come with instructions on how to properly wear them for best sound and comfort. I can still run and hear most things around me (mainly car traffic - gets harder to hear people talking or low noise pollution). I haven't needed to turn the volume up past 45-55% the sound is plenty loud with good quality sound all around and plenty loud - I haven't even needed to try max volume in any instance and I do waterside (windy) and street (traffic noise) and have found that mid range level to be more than loud enough with the way the sound funnels into your ear. There is some bass (definitely audible) however it's not going to give you the same bass as in ear or more powerful over the ear headphones (but again i didn't get them for that), surprisingly stacks up great though and I feel/hear good enough bass for the purpose of these. It has clear quality sound even while listening to podcasts on a walk - crisp and clear voices. The battery life is supposedly ridiculously long (11+ hours) which is amazing and i'm sure with more time with them that will be put to the test but I have had them 2 weeks now and haven't needed to charge them at all. They still have 30% battery straight out of the box (I also don't run for hours lol - I'll wear them maybe 1 hour a day or less). The case conveniently charges wirelessly or plug in and is light to carry even though it's a bit bigger than an airpods case. The functionality was decent, I am still getting used to the touch controls but they are pretty responsive even with sweaty ears/fingers. They are 2 taps for play/pause (good feature so they don't accidentally activate from sweat drops or hair which would happen more if it was a one touch). 3 taps to skip and you hold it down to activate siri. So far works well for me while running and walking but devices with physical buttons will obviously be easier to use with greater feedback. Volume control is a tap swipe which was cool! Love them so far and I'd say for under $50 (desertcart prime day) they outcompete the cost and almost value of more expensive $100+ headphones that people traditionally buy for their sporty/running headphones (Shokz, Beats, Bose).
Review: I love these earbuds!!! - I've been using the Earfun OpenJump set for several weeks and they are absolutely phenomenal! I was looking for open ear, multipoint, waterproof earbuds, preferably with automatic switching between my work and personal phones. And, of course, decent sound on both the caller and listener ends. The OpenJump delivers on all counts, with exceptional, rich sound, and they have been comfortable to wear all day, even with reading glasses. Listeners do hear background sounds but the AI-assisted noise canceling makes a difference because no one has asked me to repeat, and I can understand them perfectly as well. Volume can be set louder than any other buds I've owned. Calls seamlessly switch between phones. Even while talking on one I get notified of a call coming through on the other. I wasn't sure this feature was working at first but within a day of wearing the OpenJumps Ihad no issues managing multipoint calls. Any cons are outweighed by the benefits. I wish I didn't have to rely on the case to charge; cases are not sold separately and there aren't any knockoffs available yet. There is no way to turn them off short of putting them into the case. If I'm not near the case I just disconnect them from bluetooth so I won't miss notifications or calls if the buds aren't in my ears. A major additional plus is the very reasonable price. Overall, expectations have been far exceeded!

## Features

- Open-Ear Design, Hooked on Comfort. Engineered for comfort, the EarFun OpenJump wireless headphones feature an open-ear design with a double-curved surface and soft, adjustable ear hooks. This ergonomic design ensures a secure, snug fit, allowing you to enjoy comfort all day without pressure or discomfort.
- Hi-Res Sound, Rich in Detail. Refined with LDAC and Hi-Res audio, the EarFun OpenJump open ear headphones are equipped with a large 14.2mm wool composite driver and enhanced with EarFun BassSurge technology, delivering deep bass, crisp treble, and stereo sound for a natural, immersive listening experience.
- Keep Connected, Stay Awareness. Enjoy immersive sound while staying aware of your surroundings. The open-ear design ensures you hear both your music and the world around you, keeping you safe and connected.
- Crystal-Clear Calls with AI Enhanced 4 Mics. Designed for clear call, the open ear earbuds are equipped with 4 beamforming microphones and advanced AI algorithms that effectively capture your voice while minimizing background noise to ensure exceptional call clarity, no matter where you are.
- 42H Ultra-Long Battery Life, Keep Going. With up to 11 hours of playtime on a single charge and 42 hours with the charging case, the EarFun OpenJump headphones are built for all-day use. Need a quick boost? A 10-minute charge provides 2 hours of playback, so you're always ready to go.
- IPX7 Waterproof, Ready for Any Adventure. Featuring IPX7 waterproof and SweatShield technology, the open-ear wireless earbuds are designed to withstand sweat, rain, and splashes. Weighing just 0.28oz per earbud, they’re perfect for workouts, whether indoors or outdoors.
- Seamless Multipoint Connection with Bluetooth 5.3. Connect to two Bluetooth devices simultaneously with ease, thanks to Bluetooth 5.3 technology that ensures a fast, stable connection. The integrated Google Fast Pair feature makes pairing with Android devices instant and hassle-free.

## Product Details

- **Brand:** EarFun
- **Color:** Black
- **Ear Placement:** Open Ear
- **Form Factor:** Open Ear
- **Impedance:** 32 Ohms

## Images

![OpenJump Open Ear Headphones, Wireless Earbuds with Ergonomic Earhook, Hi-Res Sound, LDAC, 4 Mics ENC Call, 42H Playtime, Multipoint Connection, IPX7 Waterproof, Snug Fit for Workout, Running - Image 1](https://m.media-amazon.com/images/I/61hCH5BhuPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Unbelievable Value and Quality - These are it!
*by N***N on July 31, 2025*

I bought these after days and days of wireless headphone reviews on Youtube and Tik Tok. I will say these have blown me away. Now as a disclaimer - I wasn't looking for the best quality headphone to begin with. I was looking for an affordable headphone specifically for running and some in gym workouts and I didn't see a reason to buy an over the top headphone to get sweaty in. I wasn't shopping for sound quality either as I have a pair of Apple Airpod Max's which I am content with in every other scenario. But when I tell you that these headphones exceeded my expectations from every aspect I truly am impressed. I knew I didn't want true in ear headphones (especially for running) and these I found to be a very comfortable and fine blend of right on the ear comfortably. I've had soundshocks (bone conduction) and Air conduction headphones - these ones are air conduction which I actually prefer - especially with higher volume or more vibrational/bass pumping songs or audio (podcasts on loud are not ideal feeling on bone conduction - too much vibration). They feel and fit comfortably in my ear, they come with instructions on how to properly wear them for best sound and comfort. I can still run and hear most things around me (mainly car traffic - gets harder to hear people talking or low noise pollution). I haven't needed to turn the volume up past 45-55% the sound is plenty loud with good quality sound all around and plenty loud - I haven't even needed to try max volume in any instance and I do waterside (windy) and street (traffic noise) and have found that mid range level to be more than loud enough with the way the sound funnels into your ear. There is some bass (definitely audible) however it's not going to give you the same bass as in ear or more powerful over the ear headphones (but again i didn't get them for that), surprisingly stacks up great though and I feel/hear good enough bass for the purpose of these. It has clear quality sound even while listening to podcasts on a walk - crisp and clear voices. The battery life is supposedly ridiculously long (11+ hours) which is amazing and i'm sure with more time with them that will be put to the test but I have had them 2 weeks now and haven't needed to charge them at all. They still have 30% battery straight out of the box (I also don't run for hours lol - I'll wear them maybe 1 hour a day or less). The case conveniently charges wirelessly or plug in and is light to carry even though it's a bit bigger than an airpods case. The functionality was decent, I am still getting used to the touch controls but they are pretty responsive even with sweaty ears/fingers. They are 2 taps for play/pause (good feature so they don't accidentally activate from sweat drops or hair which would happen more if it was a one touch). 3 taps to skip and you hold it down to activate siri. So far works well for me while running and walking but devices with physical buttons will obviously be easier to use with greater feedback. Volume control is a tap swipe which was cool! Love them so far and I'd say for under $50 (amazon prime day) they outcompete the cost and almost value of more expensive $100+ headphones that people traditionally buy for their sporty/running headphones (Shokz, Beats, Bose).

### ⭐⭐⭐⭐⭐ I love these earbuds!!!
*by E***S on September 23, 2025*

I've been using the Earfun OpenJump set for several weeks and they are absolutely phenomenal! I was looking for open ear, multipoint, waterproof earbuds, preferably with automatic switching between my work and personal phones. And, of course, decent sound on both the caller and listener ends. The OpenJump delivers on all counts, with exceptional, rich sound, and they have been comfortable to wear all day, even with reading glasses. Listeners do hear background sounds but the AI-assisted noise canceling makes a difference because no one has asked me to repeat, and I can understand them perfectly as well. Volume can be set louder than any other buds I've owned. Calls seamlessly switch between phones. Even while talking on one I get notified of a call coming through on the other. I wasn't sure this feature was working at first but within a day of wearing the OpenJumps Ihad no issues managing multipoint calls. Any cons are outweighed by the benefits. I wish I didn't have to rely on the case to charge; cases are not sold separately and there aren't any knockoffs available yet. There is no way to turn them off short of putting them into the case. If I'm not near the case I just disconnect them from bluetooth so I won't miss notifications or calls if the buds aren't in my ears. A major additional plus is the very reasonable price. Overall, expectations have been far exceeded!

### ⭐⭐⭐⭐ Sound Great and a Great Price! Highly Recommended!
*by A***. on November 25, 2025*

TL;DR - I highly recommend the EarFun OpenJump. I've never owned open-ear headphones before but I was interested in getting some for cycling. After doing quite a bit of research I was no closer to deciding on a pair to buy, I narrowed it down to the EarFun OpenJump, Soundcore Aerofit 2, and Nothing Ear (Open). Since the fit is so important to the sound quality as well as overall comfort, everyone's experience with them will be different. My rankings ended up being, from first to last, what I listed above. Surprisingly that's also their order from cheapest to most expensive. Searches for the Nothing's consistently returned results saying they had the best overall sound quality. Unfortunately, they didn't fit me correctly and the speaker was too far from my ear canal leading to low volumes. If I held them in the correct position, they sounded pretty good. One problem some open ear headphones have is that when you increase the volume the amount of bass is reduced. That was a problem for the Nothing's where the bass begins to drop of after 40% volume and because of the poor fit, I had to increase the volume over 60% just to match the same perceived volume of the other two. The Nothing's were out of the running early on. The Soundcore's were ranked highly in reviews for their adjustability and great bass, even at high volumes. I can confirm it retains its bass as the volume goes up but the bass is kind of boomy in general (which I'm not a fan of). In general I wasn't happy with the way the Soundcore's sounded no matter how much I played with the EQ. They just never sounded natural. I was able to rotate the speaker so it was positioned right by the ear canal which was great but I could feel slight pressure from the battery behind my ear. I could see that becoming an issue if you're wearing them long enough. My initial thought was to just get the EarFun's as they did make a couple top recommendation lists and they were the cheapest but the other two had more good reviews. I also have portable speakers from Soundcore and Earfun and I think the Soundcore speakers that I have sound better so I was wondering if that would be the case here too. After listening to all of them the OpenJump's won hands down. The Soundcore's maybe have a bit more bass overall but the OpenJumps sound the most natural and balanced. Even at higher volumes, they retain their bass with only a slight drop-off and the bass doesn't sound boomy. They also fit the best and are the most comfortable. You can't even tell that you're wearing them. In reviews there seemed to be an emphasis on calling out the lack of bass of open ear headphones but none of these sounded anemic. In general, none of these headphones provide much, or any, bass below ~50-60 Hz but they still sound satisfyingly full. I did, however, have an issue with my initial pair of OpenJumps. The right headphone buzzed from deep bass tracks so maybe that speaks to why they're the cheapest. The replacements didn't have any issues. Hopefully they stay that way for a good long time.

## Frequently Bought Together

- EarFun OpenJump Open Ear Headphones, Wireless Earbuds with Ergonomic Earhook, Hi-Res Sound, LDAC, 4 Mics ENC Call, 42H Playtime, Multipoint Connection, IPX7 Waterproof, Snug Fit for Workout, Running
- EarFun Air Pro 4 Adaptive Hybrid Noise Canceling Wireless Earbuds, Qualcomm Snapdragon Sound, aptX™ Lossless, 6 Mics AI CVC 8.0 Call, LDAC Hi-Res Audio, 52H Playtime, Bluetooth 5.4, in-Ear Detection

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-22*