Description: With built-in 500mAh rechargeable battery, it has long battery life. It adopts Bluetooth-compatible 5.0 chip design, which has stronger compatibility and stability. Equipped with high clarity LED digital display screen, the working state and Bluetooth-compatible mode are clearly visible. It is made of high-quality PC material, which is reliable and durable. With built-in highly clear microphone, it supports wireless music listening, hands-free call and navigation. With built-in digital to analog chip, it supports six signal interfaces: digital optical fiber, coaxial, AUX, RCA, U disk and TF card. The product connection is simple without any cumbersome driving and downloading APP. The length of the adapter is 8.6cm, the width is 6.5cm and the height is 2.2cm. The length of the screen is 32mm, the width is 14.5mm and the height is 7mm. Bluetooth-compatible receiver (Rx) and Bluetooth-compatible transmitter (TX) are designed in one, which can be switched quickly by toggling the switch. And it is suitable for speaker, TV, desktop computer, laptop, power amplifier, etc. It has the function of upgrading NFC, and the mobile phone is connect at one touch. Cool breathing lamp with red / blue color is soft and not dazzling. It supports USB (U disk), TF card playing and transmitting, 5~8m infrared remote control, and various functions. Item Name: Bluetooth-compatible Adapter Material: PC Bluetooth-compatible Version: Bluetooth-compatible V5.0 Support Protocol: RX: A2DP AVRC TX: A2DP Operating Frequency Band: 2.402GHz -2.480GHz Power Level: Level 2 (Class II) Sensitivity: -85dBm