Specifications Hign-concerned Chemical:None Playback Formats:mp3,WAV With Speakers:Yes External Memory:Yes Record Audio Format:WAV Origin:Mainland China Name:Digital Voice Recorders Model:Q53 Playing Time:about 3.5 hours Recording Time:about 16 hours Recording Format:WAV Features: * High quality: High-sensitivity capacitor silicon microphone, 360 stereo all-round surround sound pickup, clearer sound. Acoustic DSP dynamic noise reduction processing module, effectively reduces environmental noise, with high-sensitivity capacitor silicon microphone, the sound is clearer and restored. Simple operation, no need to turn on the machine, you can also start recording with one button. * Segmented recording & timed recording: The segmented function can automatically segment the recording file according to the set recording time, such as: 30, 60 minutes increments are stored as a file. Just set the start time and end time of recording to achieve automatic recording or set periodic recording (such as: single, daily, weekdays). * Security: PCM recording is an uncompressed original encoding format with a bit rate of lossless 1536kbps. The PCM signal has not been encoded or compressed (lossless compression), so you don't have to worry about information loss. After setting a password, you need to enter the password to use it when you turn it on, which protects personal privacy and recording files very well. * Music player: It has built-in HIFI sound quality speakers, smooth and clear/lossless original sound/rich details, and an equalizer with multiple playback modes (funk/hiphop/rock/jazz/classical/electronic music). And it can be directly connected to an Android phone through OTG, easily manage files and download music, and can also transfer files to a mobile phone/computer for storage. * Strong battery life: Built-in 230mah polymer lithium battery, the recording battery life is strong to about 16H, and the charging time is about 2H. Specification: Name: Voice Recorder Material: Zinc alloy Screen: 0.96-inch color screen Memory: 4G/8G/16G/32G/64G/128G/256G(as you choose) Speaker: Yes Recording time: about 16 hours Playing time: about 3.5 hours Charging time: about 2 hours Size: 11*26*98mm Color: black Packing included: 1 * Voice Recorder 1 * Type-C Cable 1 * User Manual Note: 1. Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference to suit different display settings. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.