Features: Adopts BT 5.0, which provides more stable and faster audio signal transmission and let you enjoy better music and clearer sound. Transmission range is around 10 meters. With a LCD display screen, It shows 8 nearby BT devices at the same time. You can freely choose to connect to one of them. 2-in-1 design of receiving RX / transmitting TX mode, long press left and right function keys to switch reception, easy to use. Transmitter mode: Wirelessly transmits audio from a non-BT TV, home stereo system or CD player to a BT headset or speaker; Receiver mode: Wirelessly transfer audio from a BT-enabled phone, tablet or computer to wired speakers or headphones. Small and exquisite, easy to carry. USB directly supplies power, Driver-free installation, plug and play. Specifications: Model: T11 Type: Transmitter Receiver BT: V5.0 Material: Plastic Color: Black Input voltage: DC 5V Transmission distance: 10 meters/33ft Input interface: 3.5mm audio Item Size: 6*2.5*1cm/2.4*1.0*0.4in Package Size: 12*6.5*1.7cm/4.7*2.6*0.7in Package Weight: 31g/1.1oz Package List: 1 * Transmitter Receiver 1 * Audio Cable 1 * User Manual(English version)