Description: 3-IN-1 Design support bluetooth receiving (RX), bluetooth transmitter (TX), And TF card transmitter mode. Simple operation. Built-in high-definition microphone, support wireless HD stereo sound quality music listening and hands-free call. Support NFC function, connect Bluetooth when the mobile phone is close to it (mobile phone needs to have this function). Connects via 3.5mm audio jack, RCA for universal compatibility with TVs and other devices. With a 3.5mm AUX port and 2 RCA ports, it can connect 2 devices at the same time, to be connected to non-Bluetooth car audio systems, home stereo, wired headphone, speaker, amplifier and home theater. Adopted Bluetooth 5.0 technology, with a steady pairing, fast transmission and a wide signal range (33 feet). Built in 200mAh battery ensures its long work time. Compact size, lightweight, easy to carry to your office or on travel. Specification: Material: Plastic Interface: 3.5mm Jack, RCA Functions: TF Card, hands-free call, NFC connection Transmission Distance: 10 - 15 meters Weight: 38g Bluetooth Version: 5.0 Transmission Rate: 100Mbps Support Equipment: support two mobile phones to connect Model: A10 Modes: bluetooth receiving, bluetooth transmitter, TF card transmitter Battery Capacity: 200mAh Size Chart: 62x62x20mm/2.44x2.44x0.79inch Package Includes: 1 Piece Bluetooth Adapter 1 Piece Audio Cable 1 Piece RCA Line 1 Piece Charging Cable 1 Piece Manual 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 on-line shopping!