This lightweight, durable Bluetooth speaker combines big sound with a small size for the ultimate in portable music technology. Features: Bluetooth version - V4.1 Voltage DC 5V Loud Speaker - 3R 3W, Frequency response - 120Hz-20Khz Battery - 500mAh Paring range - 10m Universal compatibility - computers, smart phones, tablets, media players Specifications: Colour: Black Guarantee:1 Year Material: Plastic/Copper Model Number: SZ200BK