Long battery life of up to 10 hours for uninterrupted wireless content enjoyment. 2-in-1 function allows pairing with two BT headphones or speakers simultaneously in transmitter mode. Low latency Bluetooth-compatible 5.0 chip ensures high-fidelity stereo sound with minimal lag. Transform non-Bluetooth-compatible devices into Bluetooth-compatible transmitters in transmitter mode. Wide wireless range of over 33 feet for a stable and reliable Bluetooth-compatible connection. Item Name: Receiver Material: ABS Bluetooth-compatible Version: 5.0 Charging: 5V Battery: 300 MAh Working Hours: 5 Hours Charging Time: 2 Hours Output: 3.5MM Audio Output Features; No Delay, Dual Link, High-fidelity Size Details: Size: 6cm x 3.5cm/2.36" x 1.38" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. This product connects to a Bluetooth-compatible device (such as a mobile phone) and uses the aux interface to input audio to other audio devices without bluetooth-compatible function. This product is connected to the playback device through aux and transmits the audio to the bluetooth-compatible receiving device (such as bluetooth-compatible headset) through bluetooth-compatible. Package Includes: 1 x Bluetooth-compatible Receiver 2 x Connection Cables