Mini speaker for iPhone 4 1.suitable for the computer,PDA,,iPhone 4,the handset,MP4,the U plate,the ... SD card. 2.Small size Mini speaker for iPhone 4 Model number:MA81231.This product is the ... digital power amplifier chip,low powerloss,high efficiency. 4.Uses 40mm the neodymium magnetism bottom of the ... 3. Accessories for phone are our main products.4.Provide the prices range based on the different ...