Please note; the RB39P wireless walkie talkie cannot be paired with other wireless headsets; shortly press the menu button and turn on the wireless mode; headset prompts connected (in English); which means the connection is successful ^^ Wireless 2 way radio; you can connect the Wireless headphone to communicate easily; reduces the entanglement of the cord; make your outdoor adventures more convenient and simple ^^ 0.7 inch thin and lightweight; the small walkie-talkie is close to the body without weight; easy to grasp with your hand; ultra portable and handheld ^^ Auto-reconnect function; after turning on; earpiece will automatically reconnect; solve the trouble of re-paring; which save time and improve efficiency ^^ VOX function; achieves transmission activated by your voice; do not need to press PTT to talk; VOX can be set on/off through the menu keys; allows you to use 2 way radio with earpiece hands-free and enjoy talking while riding