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 for 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. Specifications: Model:T50 Bluetooth version:V5.1+BLE Transmission rate:100 (Mbps) Operating frequency:2.4 (MHz) Effective working for 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: 2.5x2cm/0.98x0.79inch 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! Package included: 1 Piece USB