1、It has about 1750mAh polymer lithium battery, Al intelligent power management system and can reduce the power consumption of recording. 2、With voice control mode, it can record when there is a sound, and pause without sound, which saves storage space and improves work efficiency. 3、The recording time of the recording file is synchronized with the world time, which is convenient for organizing files. 4、For its strong magnetic adsorption, built‑in strong magnet and free of installation, it can be directly adsorbed on the metal surface tightly. 5、Through the OTG adapter, you can directly connect to mobile phone for Android system, and directly organize important files on your phone. Item Type: Voice Recorder Material: ABS Model: Q85 Recording Format: WAV Music Format: MP3/WAV/WMA Interface: USB2.0 Sampling Rate: 48KHz Recording Bit Rate: 192K bps Battery Type: Lithium Battery Battery Capacity: 1750mAh (Built-In) 1 x Voice Recorder 1 x Headphone 1 x Conversion Head 1 x Data Line 1 x Manual