1.type interface: fast flushing technology, long standby time2.3.5mm interface: stable transmission, suitable for a variety of devices3. Listen to songs wirelessly, enjoy Hi-Fi fun, present Hi-Fi music, let you hear more music details. Solve the problem of wirelessly connecting bluetooth headphones to TV, not afraid of disturbing family members4. Transmission mode: receive mode/transmit mode, receive bluetooth signal, transmit to wired audio through bluetooth connection, convert wired audio into bluetooth signal, and transmit to bluetooth device for output5.5.0 stable transmission, to achieve a high degree of restoration of high-quality music, the signal is stable and not easy to be interruptedProduct Name: Bluetooth Audio Transmitter ReceiverOutput interface: 3.5mm audioBluetooth version: 5.0Transmission distance: 10mFrequency range: 2.402GHz~2.480GHzInterface: type interface RDA interfaceBluetooth version: Bluetooth 5.0 one for two, support NFC, RCAInput voltage: DC 5VAudio input method: 3.5mm rcaSuitable for cars, mobile phones, tablets, computers, TVs, speakers, etc.Material:ABScolour:BlackPackage Contents:1 * Bluetooth audio transmitter receiver1 * USB charging cable2 * Audio cableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.