Works on iOS and Android Cellphones or Tablets Allows you to activate the PTT (push-to-talk) function wirelessly AUTOMATICALLY pairs quickly and easily (after selection in the APP's device settings) Remembers the paired connection even if you have to replace the battery Operates for up to 2 years on a single battery Can be held in the hand or attached to almost anything using the included adjustable Velcro strap Not compatible with Kodiak based APPS PRYMEBLU Bluetooth Wireless PTT Button (BT-PTT-Z-MINI) works with PTT Apps using LE (Low Energy) technology and allows you activate push-to-talk function wirelessly. It can be held in the hand or use the included Velcro strap to attach to just about anything. Using Bluetooth (BTLE) and works for up to 2 years on easy to change CR2032 coin cell battery (included).