---
product_id: 125731641
title: "Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black)"
brand: "sqrmekoko"
price: "¥2587"
currency: JPY
in_stock: true
reviews_count: 12
category: "Sqrmekoko"
url: https://www.desertcart.jp/products/125731641-sqrmekoko-replacement-charging-power-supply-cable-cord-line-compatible-jbl
store_origin: JP
region: Japan
---

# Silver-plated connectors for premium charge Compact 15cm length, tangle-free design USB to 2.5mm jack for perfect fit Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black)

**Brand:** sqrmekoko
**Price:** ¥2587
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your sound, stay connected in style!

## Quick Answers

- **What is this?** Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) by sqrmekoko
- **How much does it cost?** ¥2587 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/125731641-sqrmekoko-replacement-charging-power-supply-cable-cord-line-compatible-jbl)

## Best For

- sqrmekoko enthusiasts

## Why This Product

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

## Key Features

- • **Quality Assured:** Backed by a hassle-free replacement or exchange guarantee—your peace of mind, plugged in.
- • **Premium Connection:** Silver-plated connectors ensure fast, stable charging and data transfer every time.
- • **Compact & Tangle-Free:** 15cm length with a sleek round design that fits your lifestyle—no knots, no hassle.
- • **Seamless Compatibility:** Tailored for JBL Synchros & Harman Kardon headsets—never worry about fit again.
- • **Universal Charging Power:** Charge effortlessly via PC, travel charger, or car USB port—power on the go.

## Overview

The Sqrmekoko Replacement Charging Cable is a 15cm USB to 2.5mm jack cord designed specifically for JBL Synchros E40BT, E50BT, J56BT, S400BT, S700 headphones, and compatible Harman Kardon and AKG models. Featuring silver-plated connectors for superior conductivity and a tangle-free design, it offers reliable charging via PC, travel, or car USB ports. This durable, compact cable comes with a quality guarantee, making it the essential backup or replacement for your premium audio gear.

## Description

desertcart.com: Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) : Electronics

Review: An indispensable cable - I have a pair of JBL EB50 BT headphones. I love this headphone; however, I could not find the power cable for it. Without the cable the headphones are useless because there is no other way to power it up so when I found a replacement on desertcart I was thrilled. Now, I am back in business and keep this power cord where I know where it is when I need it. It is a great price, durable, and much needed. The delivery was rather quick. I would recommend this for when you need a replacement or to just have a spare.
Review: This will cost you more than it's worth - Burned up my $180 headphones in 7 seconds.

## Features

- USB to 2.5mm Jack, fit for JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones, also fit for Harman Kardon BT and AKG K490NC/K495NC/N60NC headsets.
- Silver-plated connectors to ensure a solid, high quality connection between the connected devices.
- Charge your device through the USB port of your PC, USB travel charger, and USB car charger.
- Color: Black. Length: 15CM. Package included: 1* Cable.
- Quality Guarantee: We take care of all quality-related issues with a REPLACEMENT or EXCHANGE.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QMKPXY9 |
| Best Sellers Rank | #153,147 in Electronics ( See Top 100 in Electronics ) #3,374 in Audio & Video Power Cables |
| Brand | Sqrmekoko |
| Brand Name | Sqrmekoko |
| Cable Type | AUX |
| Color | Black |
| Compatible Devices | JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male-to-Male |
| Connector Type | USB Type A |
| Customer Package Type | sealed anti-static bag |
| Customer Reviews | 3.9 out of 5 stars 89 Reviews |
| Included Components | wire |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Length | 15 centimeters |
| Item Shape | Round |
| Item Weight | 0.01 kg |
| Manufacturer | Sqrmekoko |
| Model | RM-JBL-E40BT |
| Number of Items | 1 |
| Number of Pins | 4 |
| Other Special Features of the Product | Tangle Free |
| Recommended Uses For Product | general device charging and connection |
| Special Feature | Tangle Free |
| Specification Met | USB-IF |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Sqrmekoko
- **Cable Type:** AUX
- **Compatible Devices:** JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones
- **Connector Type:** USB Type A
- **Special Feature:** Tangle Free

## Images

![Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) - Image 1](https://m.media-amazon.com/images/I/51FslDaeboL.jpg)
![Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) - Image 2](https://m.media-amazon.com/images/I/71xfn1hJJZL.jpg)
![Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) - Image 3](https://m.media-amazon.com/images/I/719zuoIoHqL.jpg)
![Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) - Image 4](https://m.media-amazon.com/images/I/61DnRfT-fKL.jpg)
![Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black) - Image 5](https://m.media-amazon.com/images/I/61a-06mMDxL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ An indispensable cable
*by A***R on July 20, 2024*

I have a pair of JBL EB50 BT headphones. I love this headphone; however, I could not find the power cable for it. Without the cable the headphones are useless because there is no other way to power it up so when I found a replacement on Amazon I was thrilled. Now, I am back in business and keep this power cord where I know where it is when I need it. It is a great price, durable, and much needed. The delivery was rather quick. I would recommend this for when you need a replacement or to just have a spare.

### ⭐ This will cost you more than it's worth
*by B***. on January 30, 2026*

Burned up my $180 headphones in 7 seconds.

### ⭐⭐⭐⭐⭐ Power cord for headphones
*by V***A on July 31, 2024*

This power supply was a lifesaver after losing original for my husband's headphones

## Frequently Bought Together

- Sqrmekoko Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones (Black)
- Headphone Charger Cable, Ancable 6ft USB to 2.5mm Stereo Jack Male Charging Cable for JBL Synchros E30 E40BT E45BT E50BT EB40 S400BT S400 S500 S700 J56BT Bluetooth Headphones 2.5mm Male Cable
- Replacement Earpads Ear Pads Ear Cushion Cover Compatible with JBL Synchros E40BT E40 T450 Headphones (Black)

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**Shop now:** [https://www.desertcart.jp/products/125731641-sqrmekoko-replacement-charging-power-supply-cable-cord-line-compatible-jbl](https://www.desertcart.jp/products/125731641-sqrmekoko-replacement-charging-power-supply-cable-cord-line-compatible-jbl)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-28*