---
product_id: 696908929
title: "B1 Wireless Earbuds, Clip-On Earphones, Open-Ear Headphones | Bluetooth 5.4, Spatial Sound, 10.8mm Dual Magnetic Driver, 25H Playtime, Clear Calls, Multipoint Connection, App"
brand: "truefree"
price: "¥4068"
currency: JPY
in_stock: true
category: "Truefree"
url: https://www.desertcart.jp/products/696908929-b1-wireless-earbuds-clip-on-earphones-open-ear-headphones-bluetooth
store_origin: JP
region: Japan
---

# 10.8mm dual magnetic drivers IPX4 water resistant 25 hours total playtime B1 Wireless Earbuds, Clip-On Earphones, Open-Ear Headphones | Bluetooth 5.4, Spatial Sound, 10.8mm Dual Magnetic Driver, 25H Playtime, Clear Calls, Multipoint Connection, App

**Brand:** truefree
**Price:** ¥4068
**Availability:** ✅ In Stock

## Summary

> 🎶 Open up to sound freedom — hear more, feel more, live more.

## Quick Answers

- **What is this?** B1 Wireless Earbuds, Clip-On Earphones, Open-Ear Headphones | Bluetooth 5.4, Spatial Sound, 10.8mm Dual Magnetic Driver, 25H Playtime, Clear Calls, Multipoint Connection, App by truefree
- **How much does it cost?** ¥4068 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/696908929-b1-wireless-earbuds-clip-on-earphones-open-ear-headphones-bluetooth)

## Best For

- truefree enthusiasts

## Why This Product

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

## Key Features

- • **Feel Every Beat:** Immersive 360° spatial audio powered by high-carbon fiber diaphragms delivers deep bass and crystal-clear highs that elevate your playlist.
- • **Never Miss a Moment:** Up to 25 hours of battery life with quick 10-minute charging means your soundtrack keeps pace with your busy lifestyle.
- • **Your Sound, Your Rules:** Customize EQ presets and touch controls effortlessly with the Truefree app — because your earbuds should work as smart as you do.
- • **Stay Connected, Leak Less:** Bluetooth 5.4 and advanced sound leakage reduction tech keep your calls crisp and your music private, wherever you go.
- • **Breathe Easy, Wear All Day:** Open-ear clip-on design with skin-friendly silicone hooks ensures pressure-free, secure comfort for marathon listening sessions.

## Overview

The truefree B1 Wireless Earbuds combine an innovative open-ear clip-on design with powerful 10.8mm dual magnetic drivers to deliver immersive spatial audio and deep bass. Lightweight and skin-friendly, they offer a secure fit for all-day comfort. With up to 25 hours of battery life, IPX4 water resistance, Bluetooth 5.4 connectivity, and minimal sound leakage technology, these earbuds are perfect for professionals on the move. The Truefree app adds a personalized touch, letting you tailor your audio experience and controls with ease.

## Description

desertcart.com: truefree B1 Wireless Earbuds, Clip-On Earphones, Open-Ear Headphones | Bluetooth 5.4, Spatial Sound, 10.8mm Dual Magnetic Driver, 25H Playtime, Clear Calls, Multipoint Connection, App : Electronics

## Features

- [Open-Ear Design with Secure Fit] - The Truefree B1 wireless earbuds feature an innovative open-ear clip-on design that rests outside your ear canal, offering breathable, pressure-free comfort. Crafted with skin-friendly liquid silicone hooks and weighing just 5g per earbud, they provide a secure, slip-resistant fit ideal for all-day wear.
- [Immersive Spatial Audio with Deep Bass] - Powered by 10.8mm dual magnetic drivers, the Truefree B1 open-ear earbuds deliver twice the richness of standard models. High-carbon fiber diaphragms and dynamic balancing tech produce crystal-clear highs, deep bass, and immersive 360° panoramic surround sound.
- [All-Day Battery Life & Water Resistant] - Get up to 25 hours of total playtime (5.5 hours per charge + 19.5 hours with the case). A quick 10-minute charge gives 1 hour of use. With an IPX4 rating, these clip-on earbuds resist sweat and light rain — perfect for workouts, commutes, or outdoor use.
- [Minimal Sound Leakage & Bluetooth 5.4] - Truefree’s Audio Technology 2.0 uses directional sound holes and reverse sound wave cancellation to reduce sound leakage by up to 98%. Bluetooth 5.4 ensures fast, stable pairing and low-latency audio across all your devices.
- [Custom Sound with the Truefree App] - Take full control of your listening experience. Use the Truefree App to adjust EQ presets, customize touch controls (including volume), and reset your earbuds with ease through an intuitive interface.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DSNZDH28 |
| Additional Features | Open-Ear Design, Spatial Audio, Long Battery Life, Water Resistant, Minimal Sound Leakage, Bluetooth 5. |
| Age Range Description | Adult |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 25 hours |
| Battery Charge Time | 10 minutes |
| Best Sellers Rank | #43,105 in Electronics ( See Top 100 in Electronics ) #586 in Open-Ear Headphones |
| Bluetooth Version | 5.4 |
| Brand Name | truefree |
| Built-In Media | Charging Case, Truefree B1 Earbuds, USB-C Charging Cable, User Manual |
| Cable Features | Without Cable |
| Color | Black |
| Compatible Devices | Cellphones, Laptops, Tablets |
| Connectivity Technology | Wireless |
| Control Method | App, Touch |
| Control Type | Touch Control |
| Controller Type | Touch |
| Customer Reviews | 3.7 3.7 out of 5 stars (713) |
| Earpiece Shape | Open Ear |
| Enclosure Material | Nickel-titanium, Plastic, Silicone |
| Frequency Range | 20 Hz - 20,000 Hz |
| Frequency Response | 20 KHz |
| Headphone Folding Features | Open ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | Open Ear |
| Impedance | 32 ohm |
| Manufacturer | truefree |
| Model Name | Truefree B1 |
| Model Number | Truefree B1 |
| Noise Control | None |
| Number of Items | 1 |
| Series Number | 1 |
| Specific Uses For Product | Commuting, Exercising, Gaming, Music Listening, Phone Calling, Podcasting, Running, Video Conferencing, Walking |
| Style Name | Contemporary |
| Theme | Commute, Music, Sports, Work |
| Unit Count | 1 Count |
| Warranty Description | 1 year |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** truefree
- **Color:** Black
- **Ear Placement:** Open Ear
- **Form Factor:** Open ear
- **Impedance:** 32 ohm

## Images

![B1 Wireless Earbuds, Clip-On Earphones, Open-Ear Headphones | Bluetooth 5.4, Spatial Sound, 10.8mm Dual Magnetic Driver, 25H Playtime, Clear Calls, Multipoint Connection, App - Image 1](https://m.media-amazon.com/images/I/51rcCIR3YfL.jpg)

## Frequently Bought Together

- truefree B1 Open Ear Headphones Wireless Earbuds Bluetooth 5.4 Earphones, Ultra Comfort Clip On Earbuds with Spatial Audio, Stable Fit, 25H Playtime, Multipoint Connection, App Control, Workout, Gym
- Boytond Ultra Open Ear Earbuds - Bone Conduction Earbuds with Wireless Bluetooth, Clip on Headphones, Over-The-Ear Headphones Comfortable for Fitness, Running, Gym Workouts, Designed for Small Ears

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**Shop now:** [https://www.desertcart.jp/products/696908929-b1-wireless-earbuds-clip-on-earphones-open-ear-headphones-bluetooth](https://www.desertcart.jp/products/696908929-b1-wireless-earbuds-clip-on-earphones-open-ear-headphones-bluetooth)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-05*