Other than its unique donut shape, this USB rechargeable MP3 speaker designed by Balance Wu Design is made of recycled pulp. It is ultra light despite its look and size. The sound is amplified by the vibration inside the hollow space of the speaker. After a series of trial and error processes, this speaker was born with unexpected potency of sound volume and quality.
Speaker system: Mono
Amplifier output: 5 watt R.M.S.
Input: 3.5mm earphone plug
Voltage input: USB 5V 0.5A
Rechargeable battery: 3.7V / 600MA