This novel iPhone4 case infuses the design of mini speakers. The quality speakers allow you enjoy crystal clear sounds with high fidelity. The precisely designed case allows you to have access to all the ports and buttons.

• Available in two designs.
• Output power: 1W x 4.
• SNR: ≥80dB.
• Distortion: ＜0.9% (1W).
• Frequency response: 350Hz-20KHz.
• Work time: 4 hours.
• USB port power supply: DC 5V/500mA.
• Power supply mode: built-in rechargeable lithium battery.
• Weight: 80g.