1、[One Key Recording] Mini voice recorder with smart one key control setting which allows you to start voice activated recording and normal recording with ease. 2、[500mAh Rechargeable Battery] 500mAh rechargeable battery, which can support about 85 hours of continuous recording time after being fully charged(2.5 hours charging time). 3、[Strong Magnetic] Professional voice recorder features strong magnetic which can adsorb to any surface made with iron, making your recording easily and secretly. 4、[Recording and Play Format]This mini sound recorder is capable of picking up crisp clear sound at 192 KBPS WAV format. The play format supports MP3 WMA WAV. 5、[Memory Save File Time] 4GB can be stored for about 48 hours. 8GB can be stored for about 96 hours. 16GB can be stored for about 192 hours. 32GB can be stored for about 384 hours. Item Type: Voice Recorder Material: Plastic Model: Q58 Size: Approx. 57x33x16mm / 2.2x1.3x0.6in Recording Mode: One key recording Memory Card Type: Does not support expansion cards Battery Capacity: Built in lithium battery 500mAh (included) Charging Time: About 2.5 hours Recording Time: About 85 hours Playing Time: About 45 hours Recording Format: WAV Play Format: MP3 WMA WAV Recording Bit Rate: 192KBPS Sampling Rate: 48KHZ Characteristics: Hangable and wearable voice recorder, one key recording, smart noise reduction, power off protection files, file encryption, smart voice control, mobile phone OTG, local deletion, MP3 playback, smart time 1 x Voice Recorder 1 x Data Cable 1 x Manual 1 x Earphone