... hours (Test Style: SA-755D, Driver: MTK1389VQ, default setting, mid-volume)2. Compatible with most mobile styles, eg.iPhone,iPad ... Digital Controling System, more efficient power supply.6. Multi-protection: Main Control Chip, Battery Protection IC, PCT Thermistor.7. Four-level ... North America, and around 15-30 workdays to South America. Mid-East, East Euro, Africa.d.Hongkong Post Air and China Post Air ...