Vibro Speaker (TF card reader+5w+lithium battery)

Vibro speaker
This product is an independent development vibration speaker with high conversion efficiency. It uses an advanced patented electro acoustic technology, projecting audio vibrations on to solid surface to produce sound.
Crystal clear sound is produced through hard surface like wood, stone, plastic, glass, etc. The vibration speaker is of good asaptability and safety because itis working under low voltage. It's sound quality is high with good transient performance 360 degree omni directional sound, stable performance. With it's compact size, you can bring music everywhere you go, it's the best choice for laptops and other mini music players.

power supply: 5v DC 1A

output Impendance:  4 ohm

output power:  5W

Sensitivity:≥ 70dB

Input Impedance: ≥ 10KΩ

 Frequency:60Hz-20KHz

 size:diameter 60x50MM

weight:370g