Wireless Bluetooth-compatible PTT Button Switch Controller For Zello Voice Intercom Features: 1.The product is only targeted at Zello's software devices 2. The product needs to be used with Bluetooth-compatible and network enabled 3. Cannot be used while exiting ZELLO software 4. After connecting, there is no need to reconnect,You can directly operate by opening the app Always online 5. If the program is not used for a long time,you can also send it by lightly touching the PTT button 6. For Apple phones need to choose whether to press buttons or trigger 7. You can specify a contact person or team, and press to make a call 8.Bluetooth-compatible intercom button, one click to talk Specification: Name: PTT Button Working hours: more than 200 days Waterproof grade: IP67 Connection distance:30M Battery: CR2032 battery removable (not included) Supportsoftware: ZELLO Supported operatingsystems: suitable for Android 4.0/suitable for IOS 8.0 and higher Suitable for car, motorcycle, bicycle riding,safety Full cycling for easy intercom at any time Package Includes: 1 x PTT button 1 x Strap 1 x Manual Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.