Introducing Shanling MTW100 - True Wireless IEMs Available in two versions - White version using 6mm Dynamic driver with graphene diaphragm - Red or black version using single full range balanced armature driver from Knowles. Bluetooth 5.0, supporting AAC and SBC codec. Balanced Armature version – Up to 7 hours on single charge, up to 24 hours with charging case. Dynamic Driver version – Up to 6 hours on single charge, up to 21 hours with charging case. Touch sensor for control over calls and playback (play/pause, previous, next). Surrounding awareness mode, for moments when you need to hear world around you. IPX7 waterproof earphones. Mono mode available for both left and right earphone. Charging either with USB-C cable or wireless charger.