tragbare Mini-Lautsprecher

Specification: 1.Frequency response: 170Hz 20kHz of 2.Signal to the amplifier signal to noise ratio:> 80dB of 3.Speaker: 4 ohm, diameter: 40 mm 4.Line input: 3.5 mm ψ 5.Working Hours: 10 hours (medium volume, random music) 6.Built-in lithium battery capacity: 300mAH 7.Battery Voltage: 3.7V 8.Battery charge voltage: 4.2 5V, 9.Battery charge time: about 3 hours 10.Rated Power: 2W 11.Power input: Mini USB (5V/500mA) 12.Weight: 160g 13.Colors: black, red, white Feature: 1.Accompanying speaker for PC.Mp3,Mp4 and notebook. 2.Mellow and clear timbre. 3.Built-in active amplifier. 4.Pure and elegant sound quality with unsurpassed effect. 5.In compliance with acoustics and aestetics rationale. 6.Flesible sound with distinct tone levels. 7.Small sized design,easy to take. Apply to play mp3,mp4,mp5,computer and notebook. The design is fashionable and nice