Case สำหรับ iPhone 4,4s พร้อมแบตเตอรี่และลำโพง Subwoofer

Protective Case with External Battery and subwoofer Speaker for iPhone 4/4s - Give that shiny smartphone the power boost it needs to make it through the day. Also includes a built-in speaker amplifier so your iPhone’s sub-par speaker actually sounds as good as it looks.   The Perfect Fit  Pleasing to the touch, this lightweight and durable Protective Case allows optimal access to all sensors, ports, and controls on your iPhone 4s. Installing it is as easy as plug and play; simply open up the case, slide the iPhone 4s inside and connect it to the dock connector. Next step? Go play with your phones extended p
ower, because you're good to go!   Amplified Sound Enhancement  Finally, the way your iPhone 4s is suppose to sound. Whether its games, music, GPS or video playback, the 10W Speaker Amplifier on this case will offer audio in a louder, richer, and fuller sound quality. Instant boombox iPhone 4s, anyone?   More Power, More iPhone Get the most out of your iPhone 4s with this Protective Case's High Capacity External Battery. At 1500 mAh, that's almost double the usage time for talking, texting, gaming, FaceTime?, browsing and even standby. Why? Well frankly, what's the point of a smartphone if you're afraid of using it due to battery life?   • Anti-fall, anti-bump protective case • On-the-go power for the iPhone 4s • 1500 mAh battery for nearly double the iPhone 4s juice • Recharges directly with your iPhone 4s cable • 10W speaker amplifier for superior tone quality • No setup - just slip in your iPhone 4s and you're good to go!   Specifications: • Color: Black • Material: Hard Molded ABS • Speaker Amplifier: 10w • Battery: Rechargeable li-ion batteries (1500mAh 3.7v) • Output Current: <700mA (0.7A) • Output Voltage: DC 5V • Input Current: <500mA • Charging Time 3-5 hours • Playback Time about: 5-20 hours • Dimensions: 125 x 60 x 19 (mm)   Product Notes • Easy to carry around • Make your iPhone 4s sound better with the powerful speaker amplifier • Durable and Comfortable Holder • Great for emergencies • On-the-go power, enjoy your iPhone 4s without worrying about battery level • Please note, the volume up and down buttons on the case are for decoration only. To adjust the volume, please use the buttons directly on your iPhone 4s.   Package Contents • Case สำหรับ iPhone 4,4s พร้อมแบตเตอรี่และลำโพง Subwoofer • 1500 mAh Rechargeable Battery • User Manual - English