1,ONE BUTTON COMMUNICATION: Bluetooth PTT button for ZELLO works with the for Zello application. Support software for ZELLO. allows you to activate the one touch communication function wirelessly. 2,IP67 WATERPROOF: Wireless PTT button is IP67 waterproof and rainproof, so you don't have to worry about rain damage when driving your motorcycle or bicycle outdoors. 3,LOW POWER CONSUMPTION: For Bluetooth PTT button low power consumption, working time andgt;200 days, using an easy to replace CR2032 battery can run up to 200 days or more (without battery). 4,SUPPORTED OPERATING SYSTEMS: Wireless PTT button switch supports for Android 0, for iOS 8.0 and above. Specify to send individuals or teams. No need to take out your phone for operation. 5,EASY TO INSTALL: For Zello wireless PTT button is easy to install and very safe for use on vehicles, motorcycles, bicycles, and electric vehicles. Usually used with Bluetooth headset. Note: 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.