1、With BT 5.0, it can provide more stable and faster audio signal transmission, allowing you to enjoy better music and clearer sound. The transmission range is about 10 meters (barrier-free distance). 2、With LCD display, it can display 8 nearby BT devices at the same time. You are free to choose one of them. 3、Two-in-one design, receive RX / send TX mode, long press left and right function keys to switch modes, easy to use. 4、Transmitter mode: wirelessly transmit audio from non-BT TVs, home stereo systems or CD players to BT headphones or speakers 5、Receiver mode: Wirelessly transmit audio from BT-enabled mobile phones, tablets or computers to wired speakers or headphones. 6、Small and exquisite, easy to carry. USB direct power supply, driver-free installation, plug and play. Features: With BT 5.0, it can provide more stable and faster audio signal transmission, allowing you to enjoy better music and clearer sound. The transmission range is about 10 meters (barrier-free distance). With LCD display, it can display 8 nearby BT devices at the same time. You are free to choose one of them. Two-in-one design, receive RX / send TX mode, long press left and right function keys to switch modes, easy to use. Transmitter mode: wirelessly transmit audio from non-BT TVs, home stereo systems or CD players to BT headphones or speakers Receiver mode: Wirelessly transmit audio from BT-enabled mobile phones, tablets or computers to wired speakers or headphones. Small and exquisite, easy to carry. USB direct power supply, driver-free installation, plug and play. Specification: Product name: 2 in 1 BT adapter BT version: BT5.0 Input interface: 3.5 mm audio Transmission distance: 10 meters (barrier-free distance) Color: Black Material: plastic Package Size: 10 * 6.5 * 1.7cm / 3.94 * 2.56 * 0.67in Package Weight: 32g / 1.13oz Package List: 1 * Adapter 1 * 3.5mm audio cable 1 * Instruction manual (English) 1 * Adapter 1 * 3.5mm audio cable 1 * Instruction manual (English)