The charging current should not be higher than 1A, otherwise it may cause damage,
It is recommended to charge it in a computer USB port or a small current power bank.
The recommended current for using the plug is not higher than 1A;
Function: Voice recorder +MP3
Support Memory:Max. 128 GB (not included)
Size: 13mm *145mm
Weight: 50g
Color: Black
USB Interface: USB2.0
Recording format: WAV
Recording time: 72H(512Kbps), 24H(1536Kbps)
Playback Time: About 8 Hours
S/N Ratio: >90dB(MP3/WMA)
Power: Rechargeable Lithium Battery
Operating Temperature: 0-110 degree
Audio Frequency range: 20Hz-20KHz
Support System: Windows and Mac OS
Package List:
1 x Recording Pen
1 x Transmit Adapter
1 x Stereo Headset
1 x USB Cable
1 x User Manual
1 x 32GB Card (Optional)