Not just a simple audio signal adapter, but also a small wireless controller for volume control, pausebrlay, forward/backward media, just touch the button can also be used as a photo button for smart devices, making the group photomore by CR2032 Easily powered by coin cell battery, low power consumption design makes it last long, you don't need to replace the battery for a long time Features - Color: Black - Material: ABS, Universal: Compatible with most iOS devices and mostAndroid 4 0+ OS phones/tablets (Android Navigation is not supported) - Easy to use: Press and hold the "+" and "-" buttons simultaneously for 2 seconds to activate; then the front blue light flashes; turn on the phone or tablet to search the front,select the smart remote, tap connect and pair- MULTI-USE: Can be used as a wireless controller to effectively control your smart devices also can be used as a camera switch and music APP controller - Long Distance Remote Control: 10m/32 8ft long wirelesscontrol, allowing you to use more freely - Battery Powered: Powered by CR2032 coin cell battery, no need for additional power connection or battery with low power consumption design, a fully charged battery can be used for a long time - Warm reminder:Dear buyer, due to lighting effects, monitor brightness, manual measurement For other reasons, there may be a slight difference in color and size between the photo and the real thing, I hope you can understand Thank you, effectively control your smartdevice can also be used as a photography switch and music APP controller - long distance remote control: 10 meters / 32 8 feet Long Wireless Control, Allows You to Use More Freely - Battery Powered: Powered by CR2032 coin cell battery, no need forextra power connection or battery with low power consumption design, a fully charged battery can be used for a long time, also can be used as a camera switch And Music APP Controller- Remote Remote Control: 10 meters/32 8 feet long wireless control,let you use more freely- Battery Power: Powered by CR2032 coin cell battery, no need for extra power connection or battery with low power consumption design , a fully charged battery can be used for a long time, battery powered: powered by a CR2032coin cell battery, (not included) no additional power connection or battery is designed with low power consumption, a fully charged battery can be used for a long time. Shipment Quantity: 1 Piece Package Contents: Only the above package contents, excluding other products. Size: 36*36*8.5mm (Reminder: The size is measured by hand, please allow 1-2 cm measurement error) Colour: Black (Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.)