This prominent capsule speaker set flaunts a built-in magnet inside the speaker case for easy storage. It comes with a built-in rechargeable lithium battery. This compact capsule speaker is suitable for MP3 players, MP4 players, laptop computers, desktop computers, MD players, mobile phones, etc.

• Net weight: 112g.
• Speaker: φ36mm.
• Input sensitivity: 380mV (L/R).
• Power output: 1.7W.
• S/N ratio: 80dB.
• AMP frequency range: 280Hz-16KHz.
• Charge voltage: 5V+0.5V. 
• Working temperature: 0ºC-40ºC. 
• Patented design.