Feature: 1. [Noise Reduction] The recorder watch has a powerful built in chip, recording stable in complex environments, greatly reducing noise and restoring clear sound. 2. [Auto Save] Voice recorder watch will automatically save the file when the battery is low and then shut down, no need to worry about sudden power failure. 3. [OTG Connection Function] If you need urgent and no computer, please use OTG connection to the phone, so you can read the file anytime and anywhere. 4. [Sweat Proof] This recorder watch features a stylish and convenient design that is shakeproof and sweat proof, even if there is a lot of sweat or normal rainy days. 5. [Video Recording] Our recorder not only supports HD recording, but also video recording, so you can record beautiful moments anytime. Suitable for meeting, speech, classroom, etc. Specification: Item Type: Recorder Watch Material: ABS Charging Time: 2h Image Format: JPG Recording Format: WAV Video Format: AVI Lens Parameters: F NUMBER 2.25 Image Resolution: 1920 x 1080 Built in Polymer Lithium Battery: 300mAh. Package List: 1 x Recorder Watch1 x Charging Cable1 x Instruction Manual Note: Manual measurement, please allow some errors.