Specification: Material: Plastic Color: Black Audio Track: Dual track, Single track (optional) Output power: 2.5W + 2.5W Impedance: 4 ohms Frequency response range: 90Hz - 20KHz Signal to noise ratio: 80dB Distortion: 0.3% Power: USB / DC5V Package list: 1 * Pair of Speakers

USB Power Cable: Power is supplied by plugging the USB power cable into almost any USB port or connecting it to an AC outlet adapter (not including an adapter). Convenient and Portable: Enjoy music without headphones or large cables for external speakers. No charging function, only works through the USB port. Suitable for PC, MP3, MP4, portable. USB Speaker: It offers you a mini ultra-portable sound system. Compact and Lightweight: You can put this portable speaker in your bag. Cool and Funny Speakers: You can share great sounds with friends or family.