Mini size is easy to hide, light as a feather (only 21g). You can easily put it in your wallet, chest pocket or keychain, use it anywhere and anytime in our daily life. It can be used either when the VCR, can also be used when the U disk, you can use it to store all the information you need, very convenient. The recorder is equipped with 8 GB capacity and can store up to 250 hours of file recordings. The built-in 200mAh high-quality rechargeable battery can be fully charged in 2.5 hours, which can record for 30 hours continuously and play for 18 hours. Support recording while charging. The miniature recorder is also an MP3 player/USB flash drive/keychain. Built-in sound recorder, can record sound quality up to 384Kbps, using the latest noise reduction technology. ten-core PCM intelligent digital noise, can automatically reduce environmental noise by 90%; you can capture lower, but clearer sound for easy listening to HD stereo recordings