Received as gift, have buds already I favor. Buds are Clean buds, new with box, includes charging case and usb charging cord Works well, Tried them out they sync to Ios Apple and Blue Tooth compatible phones, tablets etc 10 mm, Bluetooth V5.0, Noise isolating, polymer lithium battery , voltage 3.7v, Charging Case 200 mah etc Refer to photos for more item specifications