Features: 1. The U disk is matched with USB2.0, Micro USB, compatible computer and other devices with USB ports, which can transfer data between various devices and easily complete data sharing. 2. Plug and play, can back up multiple files such as videos, pictures and documents, saving you more space. When the USB is plugged into a computer, etc., you can store captured videos and photos directly on the USB without taking up device memory. 3.USB can be used as a voice recorder, high-definition sound effect and long-lasting standby, one-key recording, allowing you to record voice more conveniently in office or other times. 4. Made of high-quality plastic, with cap protection and a convenient keychain design, this design not only prevents the port connector from being spoiled when the USB is not in use, but also allows you to carry it and prevent it from being lost. 5.After-sale Service: If you have any questions, please contact us immediately and we will help you solve it as soon as possible. Specifications: Material: ABS Colour: Black Recording format: WAV Power source: Lithium-ion battery Operating system: For Windows 2000, for XP, for Vista, for Win 7 Recording bit rate: 128K bps USB port: USB 2.0 Frequency Response: 20Hz-20KHz Maximum audio output power: 5mW Working temperature: 0~40C Recording format: WAV Recording bit rate: 128kbps Continuous recording: 15 hours Power supply: 3.7V /110mAh includes: 1 * USB