Feature: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.Specification:Item Type: Voice RecorderMaterial: PlasticModel: Q58Size: Approx. 57x33x16mm / 2.2x1.3x0.6inRecording Mode: One key recordingMemory Card Type: Does not support expansion cardsBattery Capacity: Built in lithium battery 500mAh (included)Charging Time: About 2.5 hoursRecording Time: About 85 hoursPlaying Time: About 45 hoursRecording Format: WAVPlay Format: MP3 WMA WAVRecording Bit Rate: 192KBPSSampling Rate: 48KHZCharacteristics: 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.Package List:1 xVoice Recorder1 x Data Cable1 x Manual1 x Earphone