for KPG KPG27D, KPG29D, KPG48D, KPG49, KPG55D, KPG56D, KPG62D, KPG66D, KPG69D, KPG70D, KPG74D, KPG75D, KPG77D, KPG82D, KPG87D, -D7, -D7A, -D7AG, -D7E, -F6, -F6A, -F7, -F7E, -G71, -G71A, -G71E, -K2, -K2A, -K2E, -K2ET, -21, -21AT, -21BT, -22, -22A, -22AT, -22E, -26, -27, -28, TH31AT, TH31BT, TH41AT, TH41BT, -42, -42A, -42AT, -42E, -45, -47, -48, -55, -75, -77, -G71, -205, -215, -225, -235, -235A, -235E, -315, -415, TK TK-208/, TK-220/320, TK-/340, tk-240D/340D, TK-/348, TK-250/350/353, TK-360, TK/360G, TK-/370, G/370G, TK-272G/372G/373G, G tk/378G/388G, Pro-Talk, TK-430/431, TK-2100/3100, Pro-Talk, TK-2102/3102, Pro-Power, TK-2107/3107, Pro-Talk, TK2207, TK3207, TK-2160/3160, UV5R, UV5RB, UV5RC, UV5RD, UV5Replus, UV5R+, A52, UV8, UV8D, UVB5, UVB6, /490/320/V6/V7/658/520/530/999/888/777/666 S/777 S/888 S/388A/F8+/A5, HYT TC286, TC386, TC2685, TC3865, TC6685, TC278, TC378, TC388, TC2100, TC2088 Features: Connects with walkie talkie or mobile phone Suitable for both ear Portable and lightweight design for easy carrying Enables connection to walkie talkie or cell phone Delivers loud and clear voice audio Wireless K-head design Simple button layout for easy operation Noise reduction technology Low power consumption with built-in battery Ergonomically designed to fit the human ear comfortably Equipped with USB charging cable Compatible with all K-plug walkie talkies Works with most two-way radios, including various Chinese bidirectional radio brands Compatibility: Designed for QUSHENGAN, LINTON, and other models with a two-pole plug (pin diameter 3.5mm and 2.5mm, 8mm dual pin inside, 11mm 2-pin pitch) Color: Black Material: Plastic Bluetooth Instructions: 1. Press and hold the top button on the Bluetooth adapter until the LED alternately flashes red and blue. 2. Press and hold the Bluetooth headset switch button until the LED alternately flashes red and blue. 3. When the LEDs on both the adapter and headset flash blue, pairing is successful. Package Contents: 1 x Bluetooth Headset 1 x Bluetooth Adapter (K type) 1 x USB Charging Cable Note: The package includes only the items listed above. Other products are not included. Note: Lighting effects and display differences may cause slight variations in color between the image and the actual item. Measurement error is +/- 1-3 cm.