Two-pin standard 2.5mm and 3.5mm stereo. G-shape earphone can block outside sound. Earhook design, stable and comfortable to wear. Big size PTT with built-in microphone, sound. Widely used in coffee shop, hotels, construction companies, security , etc. Color: black : ABS Compatible for As : BC10 BC120 BC130 BRP40 BC90 CP100 CP110 CP125 CP150 CP185 CP200 CP200D CP200XLS CP450 CT150 CT250 CT450 CT450LS CLS1110 CLS1410 DTR410 DTR550 DTR650 DLR1020 DLR1060 GP280 GP68 GP88 GP300 GP308 GP2000 GTX Package Contents: 1 SET Headset Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.