YPC21 Bluetooth PTT Button for Zello – IP67 Waterproof, Wireless Push-to-Talk Switch for iOS and Android ONE-TAP COMMUNICATION: Compatible with the Zello app. Enables hands-free, one-touch push-to-talk functionality via Bluetooth. IP67 WATERPROOF: Designed to withstand rain, dust, and splashes—ideal for outdoor use on motorcycles, bicycles, and electric vehicles. LOW POWER CONSUMPTION: Powered by a replaceable CR2032 battery with up to 200 days of typical usage. COMPATIBILITY: Works with Android 4.0 and later, and iOS 8.0 and later. Supports individual and group communication without removing your phone from your pocket. EASY TO INSTALL: Lightweight and portable design. Securely attaches to vehicles, helmets, or gear. Optimized for use with Bluetooth headsets. SPECIFICATIONS: - Battery: CR2032 button cell - Battery Life: Up to 200 days (typical use) - Dimensions: 3.3 x 3.3 x 2 cm - Weight: 14.2 g - Waterproof Rating: IP67 - Bluetooth Range: Up to 30 meters - Compatible App: Zello - OS Support: Android 4.0+, iOS 8.0+ PACKAGE INCLUDES: - 1 x Wireless PTT Button - 1 x Adjustable Strap - 1 x CR2032 Battery - 1 x English User Manual