... Good quality 3.Fast delivery 4.Good price enjoy music mini speaker 1)The mini audio box ... 4) Metallic, shell shows noble and fashionable, out of ordinary, with many colors, several solution, for ... computer USB, adaptor DC-5V allow you to enjoy the charm of digital products at any time.* Specification: 1) ... 150-18000HZ (+-3DB) 3) Signal and noise ratio of power amplifier:>=80db 4) Loud Speaker: 1.77 inch ...