E book: supports document format Video: supports 128x160 resolution; you need to use the conversion tool to convert by yourself Bluetooth compatible version: 5.2; supports both broadcast and video Charging interface: TypeC USB 1.1 charging Key benefits and compatibility Read documents on the device with built in e book support for document formats Watch low resolution video content after converting with an included or available conversion tool Wireless connectivity with Bluetooth 5.2; suitable for broadcasting audio or video to compatible devices Convenient charging using a Type C USB 1.1 interface for common charging cables Use scenarios On the go reading: use the device to read documents and e book content during commutes or breaks Quick video viewing: convert video content to the supported 128x160 resolution using a tool and view it on the device Wireless playback: pair with Bluetooth headphones or speakers to listen to audio or watch video content without cables Notes Video playback requires user initiated conversion to the 128x160 format Specifications focus on function, compatibility, and charging interface as listed Size and material are not specified in the provided details