Product Review

Specification:
Working time: more than 10 hours (depends on battery)
Output: 1W + 1W
3.5mm standard connector
2 speakers: 28mm in diameter
Frequency range: 200Hz - 20kHz
Net weight: 40g or 1.41oz
Size: 80 x 80 x 28 mm (3.35 x 3.35 x 1.16 in)
Impedance: 8ohm
Powered by 2 AAA 3V batteries (not included)
Compatible with all devices with 3.5mm connector, such as iPhone, iPod, MP3, MP4, etc.

Note: The volume of louder speaker is not very high. It is only slightly higher than the speaker of the phone. Its maximum decibel is about 120 decibel.

Package included:
1 X Speaker