GLCON GS-03 Mini Black Wireless Stereo Bluetooth BT Headset Headphone Earphone Earpiece Earbud Exclusive USB Charge Charging Cable 1 set of charging cable 2.0mm diameter interface This charging cable is exclusively for GLCON GS-03 bluetooth headset (ASIN:B00LISHLF0) If you are not GLCON bluetooth headset user, please do not buy to avoid meaningless issues