Product Description Advanced Settings: Quran reading pen built-in a speaker, a rechargeable Li-battery, an 8GB TF card and a USB port to connect to PC. With buttons of pause / play / volume +/-, fast / slow (reading speed control), it’s very easy to use. The reading pen support about 12h usage after full charged and up to 30 days standby, it also will automatically turn of in 3 minutes if you don’t use it.