Features: Ultra-long standby, long-lasting battery life.  Intelligent voice control recording.  High-definition noise reduction technology, restore the real scene.  One-key operation, switch between two modes.   Intelligent time stamp, built-in time chip.  Password protection, with its own encryption function.  Strong magnetic adsorption.  Automatically save when power off.  Support OTG connection, mobile phone and computer can play at will.  Recording format: WAV;  Play format: MP3/WMA/WAV;  Recording method: one-key recording;  Battery: Environmentally friendly polymer lithium battery;  Bit rate: 192KBPS;  Recording time: about 400 hours;  Playing time: about 220 hours;  Charging time: 6 hours;  Built-in memory: 4G/8G/16G/32G/64G;  Product specifications: 25 x 30 x 75mm;  Product weight: about 65g;     Package Included: 1 x Voice Recorder;  1 x Data Cable;  1 x User Manual