Feature:1. Lightweight wireless audio transmitter and receiver is a good wireless audio solution for various situations and uses.2. Transmitter mode: wirelessly transmit audio from a nonBluetooth TV, home stereo system or CD player to a Bluetooth headset or speaker.3. Receiver mode: Wirelessly transmit audio from a Bluetooth‑enabled phone, tablet or computer to a wired stereo, speaker or headset.4. You can switch between transmitter and receiver modes with just one tap of the switch. Use advanced Bluetooth technology and 3.5 mm audio cable (included) to easily connect.5. Super portable audio streaming function. It has powerful wireless audio streaming function. Slide this transmitter/receiver into a backpack or laptop bag and you can carry it with you effortlessly.6. Wide compatibility: With the included 3.5mm cable and 3.5mm to 2RCA cable, this receiver transmitter adapter can be widely used in your computer, laptop, home stereo system, headset, smart phone, Mp3 player, CD Player etc.Specification:Condition: 100% brand newItem type: Bluetooth Receiver TransmitterMaterial: ABSColor: As picture shownWeight: Approx. 78g Technology: BT5.0, A2DP, AVRCP (receiver mode just)Working range: up to 10m / 33ft (without any obstacles)Charging time: about 2 hoursWorking time: about 4 hoursBattery type: polymer lithium batteryBattery capacity: 200 mA.Package List:1 x Bluetooth 5.0 audio transmitter/receiver adapter1 x Micro USB power cord1 x For RCA cable1 x 3.5mm auxiliary cable1 x User Manual