Key Features:
1. Nice Shape
2. Tiny, portable.
3. Built-in Li-on battery by USB port.
4. Dual 3.2cm speaker.
4. Retractable resonator provide louder sound.
5. Power volume control knob.
6. Applicable to iPods, MP3/MP4 player, PDA, Mobile phone, PSP, MD player, Walkman, etc
Specification:
1. Speaker out put: 2W x 1, 1W x 1 (3.2cm, 2.8cm)
2. Sensitivity: 82 +/- 3dB
3. Lithium ion battery input: 4.2V DC
4. Lithium ion battery output: 3.6V DC
5. Box Size:35*46*58MM
6. Net weight:60g