Model RQ-240 Quantity 1 Color Black Bluetooth Version 2.1 Operating Range Up to 10 meter Compatibility Cellphone with Bluetooth Microphone No Radio N/A Supports Music Format MP3 / WMA Power Supply Built-in Battery Built-in Battery Capacity 500mAh Other Features Built-in 2GB memory; Hi-Fi stereo quality headphone; Lens is changeable can be in short-sighted lens; can connect your mobile with sunglasses; Lens height: 2.7cm Lens width: 5.7cm Lens total width: 13cm Packing List 1 x Bluetooth glasses 1 x Box 1 x 100~240V power adapter (US plug) 1 x Pair of earphones (50cm) 1 x Replacement glasses 1 x Data charging cable (45cm) 1 x Cleaning cloth 1 x English / Chinese manual