EXPANSYS Micro-Vibration Portable Speaker

This micro-vibration speaker uses a piezo technology to deliver sound and depth of Bass that at first seems unbelievable for its size by simply turning any flat surfaces or even a thin paper into a thumping sound speaker. It will work with any MP3 players, smartphones, tablet PCs via a 3.5mm connector and with a single charge delivering 6~7 hours of playback.

The eXpansys piezo speaker is a compact portable speaker unit which provides a full range frequency response. It features saving power on your device, it is handy to carry with you for outdoor activities.
The speaker is intended for use as both a fixed and portable solution for all iPod, iPad, mp3, mp4, mobile phone and computer applictions.The speaker is powered by an internal rechargeable battery and can deliver up to 6~7 hours of playtime per charge.The unit can be recharged via computer USB with your the included mini USB cable.

N.B.
- The level of sounds depends on the materials of surfaces you place the vibration amplifier on, you can even place it on light weight/low density materials such as paper or plastic bag.
- The output of sounds also depends on the audio device you use