YPC21 Wireless Bluetooth PTT Button for Zello – IP67 Waterproof One-Touch Communication: Compatible with the Zello app for iOS and Android. Enables wireless push-to-talk functionality with a single press. IP67 Waterproof Rating: Designed to withstand rain and outdoor conditions, suitable for use on motorcycles, bicycles, and electric vehicles. Low Power Consumption: Powered by a replaceable CR2032 battery with an estimated operating life of over 200 days. Compatibility: Works with Android 4.0 and later, iOS 8.0 and later. Supports individual and group communication without removing your phone from your pocket. Easy Installation: Compact and secure design for mounting on vehicles, helmets, or gear. Optimized for use with Bluetooth headsets. Specifications: Battery: CR2032 button cell Operating Time: Over 200 days Dimensions: 3.3 x 3.3 x 2 cm Weight: 14.2 g Waterproof Rating: IP67 Bluetooth Range: Up to 30 meters Compatible Software: Zello app Operating Systems: Android 4.0+, iOS 8.0+ Package Includes: 1 x Wireless PTT Button 1 x Strap 1 x CR2032 Battery 1 x English User Manual