Description: Making allowance for freeing your hands and easy installation, it is designed with a back clip. With an intelligent connection, it is convenient for you to achieve remote control when taking photos. Using the PC and Metal material, the bluetooth receiver is lightweight and portable. The length of the product is 15.5mm and the width is 60.5mm. It can be used for cars, wired headsets, wired speakers, headphones, desktop PCs, etc. Item Name: Audio Receiver Material:Plastic,Metal Operating Hours: 8h Batteries: 110mAh Charging Time: 1.5h DC Voltage: DC 3.2V-4.2V Direct Current: 13mAh Interface Type: 3.5mm AUX Jacks Transmission Rate: CLASS2 Charging Current: 90mAh Bluetooth Protocol Support: HFP/A2DP/AVRCP/HID Transmission Distance: 10m Working Frequency: 2.4GHz-2.480GHz Bluetooth Version: V5.0+EDR Size:6.05cmx1.55cmx1.55cm/2.38inx0.61inx0.61in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension differences due to different manual measurements.Package Includes: 1 X Audio Receiver