Note: All data are measured manually, and there are certain errors in the measurement results. Specification: Item Type: Digital Voice Recorder_x000D_Model: Q65_x000D_Material: Metal, Electronics_x000D_Battery Type: Built in 1200mAh Lithium Battery (included)_x000D_Size: Approx. 4x4x2cm / 1.6x1.6x0.8in Features: 1LARGE CAPACITY AND VERSATILITY: This recorder has a large memory capacity, enough for over 168 hours of continuous recording and up to 750 hours of file storage. Its compact size also makes it a handy MP3 player and USB drive when needed. 2CRYSTAL CLEAR SOUND QUALITY: The recorder utilizes intelligent dynamic microphones and triple noise reduction technology to ensure noise free recordings and 360 degree panoramic recordings that deliver clear sound. You can enjoy the recording and playback process with ease. 3EASY RECORDING AND NAMING: With a simple toggle switch, it can start recording after about 5 seconds and save the recording by switching the switch to "Off/Save". Each recording is named with a time stamp, making it easy to find the file on your computer. 4VOICE ACTIVATION: To minimize gaps and whispers in your recordings, save battery life and free up memory space, simply follow the instructions to activate the voice activation feature. Recordings are encrypted for security. 5WIDE APPLICATION: Perfect for lectures, meetings, interviews and more. It makes a wonderful present for teachers, students, writers and anyone who needs a reliable voice recorder. 6STRONG MAGNETIC ADHESION: No need to install,no wiring need. Built in strong magnets, worry free and installation free, can be adsorbed on the metal surfacedirectly to fit tightly and you can install it wherever you want. PackageList: 1 x Voice Recorder 1 x Wired Earphone 1 x Charging Cable 1 x Instruction Manual