Features: [BT Audio Receiver] It turns the traditional headphones, speakers, amplifiers and others into BT-enabled ones. After paired, play music wirelessly from your BT-enabled audio devices without the hassle of cables. [Advanced BT Technology] Wireless 5.1 technology ensures transmitting strong signals in high-quality and high speed. BT range reaches up to 10 meters in open space without obstacles. [Hands-free Call Multi-pairing] With built-in microphone, it enables hands-free calls to ensure driving safety. Multi-point connection function ensures to switch between your business and personal phones. [Strong Compatibility] Compatible with Android and iOS smartphones, tablet PC and more BT-enabled audio devices. 3.5mm audio port design, suitable for non-BT speaker, amplifier and other stereo systems. [Low Power Consumption] Built-in 200mAh Battery ensures more than 10 hours of working time. Compact and portable with a back clip, convenient to use. Supports independent volume adjustment. [Shooting Remote Control] Works as a camera shutter. Pair with your phone via BT, and just turn on the photographing function on your phone, click the photo shooting button to take photos.