General description This Walkie Talkie Wireless Bluetooth PTT Headset Earpiece is designed for hands-free communication, compatible with a wide range of walkie talkies and mobile phones. It features a simple button design for easy operation, noise reduction technology, and a comfortable fit for prolonged use. Technical specifications Color: Black Material: Plastic Pin diameter: 3.5mm and 2.5mm Double pin inside: 8mm 2-pin wheelbase: 11mm Compatibility and accessories Compatible with various models including KPG KPG27D, KPG29D, TH TH-D7 series, TK TK-208/220/320, UV5R series, and HYT TC series. Package includes: 1 x Bluetooth headset 1 x Bluetooth adapter (K type) 1 x USB charging cable Installation Press the top button of the Bluetooth adapter until the LED light alternately flashes red and blue. Press the Bluetooth headset switch button until the LED light alternately flashes red and blue. When the LED of both devices flashes blue, Bluetooth pairing is successful. Usage Connects with