1、Bluetooth transmitter and receiver, the transmitter function can convert 3.5mm audio output media devices into Bluetooth devices, which can stream Bluetooth audio; the receiver allows non‑Bluetooth devices such as vehicle or home stereos to receive high‑quality audio. 2、Real‑time sound, using aptX low‑latency technology, enjoy a delay of lower than 95%; now the end‑to‑end delay time is 40 milliseconds, and high‑definition video transmission in transmitter mode is no problem. 3、2 for 1 connection, two Bluetooth headsets or speakers can be paired at the same time, children can watch quietly, and parents can take a break. Note: aptX low latency does not support dual pair mode. 4、In the receiving mode, you can full control the music, including play/pause, track selection, and volume control and buttons on the adapter. 5、This adapter can be connected to traditional devices such as wired headsets or speakers, and can receive Bluetooth music directly from mobile phones and tablets. 6、It has 20 hours of continuous audio, battery protection, charging during operation, and pairing memory function. Condition: 100% brand new Item type: 3.5mm Wireless Audio Adapter Material: ABS Color: black Weight: Approx. 62g Bluetooth document: V5.0 EDR, Support Bluetooth protocol: A2DP, HSP, AVRCP Working range: open area up to 10 meters without any obstacles Adapter battery capacity: 60mAh Adapter battery type: lithium battery Play time: After full charged, it can play continuously for about 6 hours 1 x Adapter 1 x Instruction 1 x Connecting cable 1 x Charging cable