One Sennheiser HDR 160 headphone and one Sennheiser HDR 180 headphone plus bluetooth sender unit and power charger and one audio cable. The HDR 180 uses 2 AAA batteries (no charge stand sorry) and the HDR 160 charges from the base/sender unit. Both can be paired to the sender unit, one for you and one for the significant other. The power/bluetooth sender unit’s cable is a bit frayed at each end but is a simple fix with a bit of heatshrink cable.