Main Feature:
- Anti-fall, anti-bump protective case
- On-the-go power for the iPhone 4
- 1200 mAh battery for doubling the endurance of iPhone 4
- Recharges directly with your iPhone 4 cable
- 2W speaker amplifier for superior tone quality
- No setup – just slip in your iPhone 4 and you're good to go

Specification:
- Material: Hard Molded ABS
- Pilymer lithium-ion batteries
- Capacity:1200mAh
- Output voltage:DC5±0.1V
- Output Current: ≤700mA
- Input voltage:DC5±0.2V
- Input Current: ≤500mA
- Charging time:3-4hours
- Cycle life:>500times
- Standy time:≥150hours
- Talk time:Up to 4hours on 3G/Up to 6hours on 2G
- Internet use:Up to 3hours on 3G/Up to 4hours on Wi-Fi
- Audio play:Up to 20hours
- Video play:Up to 4hours
- Speaker Power:2W
- Package Weight:127g
- Package Size:18.2*9*2.5cm
Package:
- 1 x 3-in-1 Portable Rechargeable Speaker with Battery Case for iPhone 4 4S
- 1 x USB cable

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