Round Shape Induction Speakers - Plastic, 3w Rms, 20hz-20khz | Wireless Sound, Portable, Long Battery Life

These Round shape Induction speakers for smartphone, Induction amplifier, magic speaker, smartphone. This product takes advantage of the Latest sensing technology. By just putting your mobile on the product, you can amplify the sound volume magically without blue tooth, WIFI or any wiring connection.
It is compatible with i-phone 4S, i-phone 4, i-phone 3 GS, Touch4 and other external speaker phones!
a c Magical sound amplification function for mobile phone or other external speaker devices.
a c No paired set or other connectors like blue tooth, WIFI or wires is required
a c Support IOS device and mobile with Android system
a c Power out-put: RMS 3W*1
a c Impedance:4IC
a c Frequency range:20Hz-20KHz
a c Support audio input and DC-5V input (MINI USB) jack
a c High efficiency-15-hour play time with 3x AA A Alkaline batteries
a c Low battery warning