Connect the bluetooth connector to the car AUX interface through the adapter/transfer cable (standard), and connect the bluetooth to the car stereo, which can not only make calls, but also listen to dynamic music, so that your journey is no longer lonelyLossless sound quality CD-level enjoyment: high-resolution restoration of lossless sound quality, bringing CD-level music experience only one, you can listen to the music in your phoneFully charged once and used for 4 hours: the built-in rechargeable lithium battery can be charged once, and can be used for 4 hours when the battery is low, which is convenient and worry-freeBluetooth 5.0 listening to songs without lag: low power consumption and high rate stable signal transmission, listening to songs more smoothlyConnect to the TV's 3.5mm audio interface, and transmit the sound to the headset via Bluetooth, so you are not afraid to disturb your family when watching movies at nightBluetooth 5.0, 4 hours of battery life, lossless sound quality, hands-free call, plug and play, AUX interfaceBluetooth transmission mode (TX): Convert wired audio into Bluetooth signal, and transmit it to Bluetooth device for outputBluetooth Receive Mode (RX): Receive Bluetooth signal and transmit it to wired audio through Bluetooth connectionConnected to 3.5mm audio port, the speaker without Bluetooth function can also be played wirelesslyProduct model: C28 Bluetooth audio receiving and transmitting comboBattery capacity: 140AmhWorking range: 10m (without any obstacles)Charging time: 1hSuitable type: computer, TV, projector (transmission mode)/speaker, earphone (reception mode)Colour:blackMaterial:plasticPackage Contents:1 x Bluetooth 5.0 Receiver TransmitterOnly 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.