#bluetoothtechnology

New models available. As a professional Bluetooth speaker and earphone manufacturer based in China, we welcome your inquiries

Boost fleet efficiency and data accuracy with the Teltonika FMC003: 4G LTE Cat 1 tracker + OBD‑II OEM data reading. Plug in, start tracking, optimise operations effortlessly.

Bluetooth LE Audio Market Analysis: Opportunities, Innovations, and Growth Potential Through 2034   Global Bluetooth LE Audio Market size and share is currently valued at USD 4,500.72 million in 2024 and is anticipated to generate an estimated revenue of USD 24,907.13 million by 2034, according to the latest study by Polaris Market Research. Besides, the report notes that the market exhibits a…

As a leader in Bluetooth audio solutions, Zhuhai Jieli Technology's Bluetooth Test Box is an essential tool for development and production. This guide provides complete operational instructions to streamline your Bluetooth chip testing.

Core Features Overview

The JL (Jieli) Bluetooth Test Box offers:

Dual-device parallel testing capability

A2DP audio playback testing

HFP call function testing

Frequency offset testing with auto-calibration

Wireless firmware upgrade

Rapid test mode

Step-by-Step Operation Guide

1. Power Connection & Initial Setup

Use included 9V power adapter

Verify "Searching" status on both channels upon startup

Confirm correct Bluetooth name display for DUT (Device Under Test)

2. Critical DIP Switch Settings

(Requires reboot after adjustment)

3. Button Functions

Reset: Typically unused

Device B Next: Cycles through music→call→disconnect

Device A Next: Same for second device

Disconnect: Hold while connecting PC cable for config mode

4. Frequency Offset Standards

Real-time offset value displayed

Pass Criteria: Must maintain ±20KHz range

Auto-calibration (Switch 5) optimizes automatically

5. Configuration Tool Workflow

Enter config mode (Hold Button4 + PC cable)

Access CD drive in "My Computer"

Launch bt_test_box.exe

Key parameters:Minimum detectable signal (adjust range)Target device name (accelerates pairing)Max TX power (connection stability)

6. Wireless Upgrade Methods

Method 1: SD Card

Pre-configure target device name

Insert SD card with .bfu file

Auto-upgrades upon connection

Method 2: PC Bluetooth

Navigate to "Device Upgrade" in config mode

Select device or specify Bluetooth name

Load .bfu file to initiate

Troubleshooting Guide

Upgrade Failures:

Display Issues:

Audio File Update:

Pro Tips

Enable both Switch 4 & 5 for precision frequency tests

Maintain 4+ standby devices for batch testing efficiency

Quick test mode requires AC690x_SDK2011+ firmware

For complete technical documentation including:

Detailed user manuals

Schematics & reference designs

Debugging guides

FAQs

Visit our AliExpress store [BLE Voice Store] or contact our engineering team:

📧 [email protected] 📱 +86 159 0279 7635 (WhatsApp/WeChat)

FMC003 LTE CAT1 ADVANCED OBDII TRACKER WITH BLUETOOTH® TECHNOLOGY

Track smarter with the FMC003 LTE Cat1 Advanced OBDII Tracker—now with built-in Bluetooth® technology. Designed for seamless vehicle monitoring, it delivers real-time data, enhanced diagnostics, and reliable connectivity. Ideal for fleet management or personal use, it ensures precision, performance, and peace of mind—right from your dashboard.