Feature: 1. [2 in 1] This product is a bluetooth device that integrates receiving and transmitting, which is easy to operate and can send and receive all signals freely. 2. [Receiving Mode] Through the product's Bluetooth reception mode, the music in the mobile phone can be transmitted to the traditional home equipment. 3. [Transmission Mode ] Through the bluetooth transmission mode of the product, the TV, CD player, MP3 or other sources can be sent to the Bluetooth speaker or bluetooth headset. 4. [Advanced Technology] Thanks to the bluetooth transmitter receiver's low latency technology, it also supports real time streaming of sounds from online games, TV and movies. 5. [Practical to Use] Perfect solution to the device limitations, the 2 in 1 wireless bluetooth adapter extends all kinds of equipment conversion function. Specification: Item Type: Bluetooth 5.3 Transmitter Receiver Material: ABS Bluetooth Version: 5.3 Bluetooth Protocol Support: A2DP and AVRCP Support Multi format Decoding: MP3, WAV, WMA, APE, FLAC Charging Input Voltage: DC 5V Working Hours: > 10H Charging Time: 2H Signal Ratio: ＞95db Input and Output Connection: 3.5mm Stereo Headphone Stand Compatibility: Receiver is Compatible for Android System, Each Brand of for IOS Systems, Various Mobile Phones; Transmitter Compatible with for CSR, for Strongjet, for Airoha, for Vimicro, for Ankai, for RDA, for Jianrong, for Jeather and Other Bluetooth Schemes Battery: Built in Lithium Battery, 3.7V 400mah. Package List: 1 x 3.5mm Cable 1 x USB Charging Line 1 x Connection Line 1 x Manual 1 x Bluetooth 5.3 Transmitter Receiver