GEO Bone Conduction Headset GRFD-BCH N6S https://product.geo-online.co.jp/product/headphone/boneconductionheadphone/grfd-bchn6s/ It is in working condition. There are no problems with pairing, audio playback/input, charging, etc. Instruction manual and USB cable are included. The cable is new. Because it has a microphone, it is much easier to be understood even if the surroundings are noisy, compared to products without a microphone.