Bluetooth 5.3 Receiver transmitter Receiving and transmitting in one CD-level sound quality.15M transmission and portable.long battery life Receive/Transmit Two-in-one, 3.5mm audio port Wide adaptability Bluetooth 5.3 chip Stable connection stable operation, smooth flow and no lag Hign-concerned Chemical: None Support Memory Card: No Support Apt-x: Yes Support AAC: Yes Model Number: A13 Feature: None High Definition Support: None Content: AUDIO WIFI Standard: None Wireless Type: Bluetooth Sound Track: Double Interface: 3.5 MM,Type-C Color: Black Material: Aluminum Alloy Package Contents: 1 * Bluetooth receiver and transmitter 1 * charging cable 1 * audio cable Only 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.