Super Mini Sound Box

Description:
Tiny, portable.
Built-in lithium ion battery, changing via USB port.
Dual 3.2cm speaker.
Retractable resonator provide louder sound.
Power volume control knob.
LED indicator.
Applicable to iPods, MP3/MP4 player, PDA, Mobile phone, PSP, MD player, Walkman, etc.

Specifications:
Speaker out put: 2W x 1, 1W x 1 (3.2cm, 2.8cm)
Sensitivity: 82 +/- 3dB
Lithium ion battery input: 4.2V DC
Lithium ion battery output: 3.6V DC
Dimension: 4.5 x 5.3 x 3.4cm
Weight: 55g