Thanks to Bluetooth-compatible 5.0 version, it has strong signals and high-speed transmission. With TF card slot, it enables convenient using.It is the built-in 200mAh battery that ensures 6 hours of continuous working time. It is back clip design that makes it convenient to use and carry.It is made of good quality ABS material, durable to use.The length of this product is 5.5cm, the width is 3.4cm and the height is 1.6cm.It is suitable for smart phones, tablets and more Bluetooth-compatible audio devices. With an intelligent connection, it is convenient for you to achieve remote control when taking photos.Item Name: Bluetooth-compatible ReceiverMaterial: ABSColor: BlackOutput Interface: 3.5mm AudioBluetooth-compatible Version: V5.0Bluetooth-compatible Protocol: A2DP, HSP, AVRCP, HFPTransmission Distance: 10 MetersBattery Capacity: 200mAh (Included)Use Time: 6 Hours of Continuous UseFeatures: Portable, Stable Transmission, Easy to UseSize Details: 5.5cm x 3.4cm x 1.6cm/2.17" x 1.34" x 0.63" (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.Package Includes:1 x Bluetooth-compatible Receiver1 x Charger1 x 3.5mm Audio Cable