Description: Bluetooth 5.1: Automatically connect to the mobile phone with Bluetooth 5.1 version, higher transmission efficiency, and navigation without delay. Built-in antenna design, can achieve 0-10 meters long-distance transmission. Lossless audio: Using Bluetooth 5.1 chip, built-in performance decoding chip, high-performance stereo, listening to songs smoothly without delay. Three frequency bands to avoid conflict interference. Hands-free calling: Built-in microphone, hands-free amplification for high-definition calls, keep your hands off the steering wheel, and drive safer. Long lasting battery life: It adopts the car DC5V in-line power supply design, which is plug and play. Support car U disk or car charger interface for power supply. Car universal: It is not limited for mobile phone, for Android, for universal, suitable for cars, , large trucks, excavators and other car audio, 12-24V large trucks can also be used. Specification: Model: T50 Bluetooth version: V5.1+BLE Transmission rate: 100 (Mbps) Operating frequency: 2.4 (MHz) Effective working radius: 10m Interface:USB Working voltage: 5V/1V Whether plug and play: plug and play Connection method: mobile phone, tablet, Bluetooth connection Button support: FM/play/pause/answer the call Frequency range: FM87.5/95.0/103.0 Size Chart: 2.5x2cm/0.98x0.79inch Package Includes: 1 Piece USB Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!