Q55 32GB Expandable DSP 8-Core Noise Reduction Audio Recorder Dual-Mic HD Voice Activated Recorder for Lectures Meetings Classes Lightweight design,zinc alloy shell,really great touch feeling,so light that you can't really feel its weight Simply turn to the Voice Activation function,60m long-distance HD recording,and the device will automatically record if there are people talking,also will automatically save files if the talking stop A built-in DSP 8-core chip,with a PCM recording method,greatly reduces ambient noise and effectively restores human voices Built-in high-sensitivity capacitor microphones,dual microphones pickup surrounding sound and restore the high-fidelity sound Support AB repeat,variable speed playback,though there is variable speed playing it is in the pitch same to the original sound Voice to text,get twice the result with half the effort,free your hands With the encryption function,recording files are enciphered to ensure the security of the recording file Support for WAV/MP3/WMA/APE/FLA/OGG/AAC/AAX/M4A playback function,not only a voice recorder The simple one-key recording makes it super user-friendly The time setting function is also available,there is a timing routine that allows you to better manage your record time With an OTG adapter (not included),you can directly manage your voice files on Android devices Specifications: Model: Q55 Material: zinc alloy shell Screen: 0.8-inch black and white screen Button: touch button Battery: polymer lithium battery Memory: 32GB,expandable up to 256GB Size: 11mm*27mm*85mm Microphone: yes Speaker: high power speaker 2030 Battery capacity: 300mAh Recording time: 30h Play time: 12h Charging time: 2.5h Recording format: WAV/MP Playback format: WAV/MP3/WMA/APE/FLA/OGG/AAC/AAX/M4A Package included: 1 x Voice Recorder 1 x Data Cable 1 x English and Chinese User Manual Other items not included