Bluetooth 5.3 Receiver transmitter Receiving and transmitting in one CD-level sound quality.15M transmission and portable.long battery lifeReceive/Transmit Two-in-one, 3.5mm audio port Wide adaptabilityBluetooth 5.3 chip Stable connection stable operation, smooth flow and no lagHign-concerned Chemical: NoneSupport Memory Card: NoSupport Apt-x: YesSupport AAC: YesModel Number: A13Feature: NoneHigh Definition Support: NoneContent: AUDIOWIFI Standard: NoneWireless Type: BluetoothSound Track: DoubleInterface: 3.5 MM,Type-CColor: BlackMaterial: Aluminum AlloyPackage Contents:1 * Bluetooth receiver and transmitter 1 * charging cable 1 * audio cableOnly the above package content, other products are not included.Note: Light reflection 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.