USER MANUAL Please read the manual before use Notice: Don't use fast charger to charge it, it only support 5V charger, if use 9V or 12V fast charger, it may cause the machine burned. 1. Appearance and Control Layout1. Power switch/REC switch 2. “+” Volume increase/Next button 3. “-” Volume reduce / VOICE and MUSIC switch button 4. Headphone jack 5. Indicator 
2. Operation● Recording:
When the headset is not plugged in, Move the power switch to the "ON" position, After the light flashes 3 times, it enters in In the recording state. The normal recording red light flashes three times, and the voice-activated recording blue light flashes three times. ● Playback:
When the headphone is plugged in, turn the power switch to the "ON" position, and the recording file or MP3 music file will start to play. The red light will flashes when the recording file is played, and the blue light will flashes when the music file is played. ● Save Recording/Power off:
In the recording state, turn the power switch to "OFF" to save the recording, all works are off, and the power is disconnected at this time. ● Volume up/next song key:
When the headphones are plugged in and playing, short press the "+" key to move to the next song, and long press to increase the volume. ● Volume down/play switch key (multi-function key):
When the earphone is plugged in and playing, short press the "-" key to switch the recording file to MP3 music file, and long press to decrease the volume. ● Headphone slot:
When the headset is not plugged in, the power is turned on to enter the recording state; when the headset is plugged in, the power is turned on to enter the playback state. ● Indicator:
1. Start recording:
• Normal Recording: Red light flashes 3 times
• VOR Recording: Blue light flashes 3 times
2. Recroding status checking: Press the volume + button, the red light will falsh once.if didn't falsh, means recording ended.
3. Save recording: Red light falsh once.
4. Playing:
• Play Recordings: Red light flashing.
• Play Musics: Blue light flashing.
5. Memory full: The red light continues on 5mins, then turn off.
6. Battery low: Red light flash 10 times them turn off.
7. Charging: Red light flashing.
8. Charge full: Blue light continues on. 3. Setting
● Time setting:
A number in the format of "00:00 2021/7/1" will appear in the document. Set the time and date manually according to the format of the document. You can also select the content after the colon and use F5 to refresh quickly (only operating systems above Windows 10), and the time setting is complete. ● VOR setting:
The voice control number is 0 by default, which means there is Normal recording. The voice control level has 1-7 digital options, beyond which it is invalid. If there is no sound from the outside, the recording will be paused. If the outside sound is detected, the recording will be restarted. The larger the number, the smaller the decibel of sound detection and the more sensitive the sound control effect. ● Bit rate setting:
1-4 corresponds to 32kbps, 64kbps, 128kbps, 192kbps recording bit rate settings, the default is 4, 192kbps. ● GAIN setting:
1-7 numbers are optional. The larger the number, the greater the sensitivity of the microphone and the louder the recording sound. The default is 7. ● Recording time segmentation PART setting:
In order to prevent recording files from being unable to be saved under emergency recording situations, users can set the safest recording segmentation time by themselves during long-term recording, which can be set at any time from 10 minutes to 240 minutes. 4. TECHNICAL SPECIFICATIONSREC Format: WAV
Play Format: MP3/wma/flac/ape/wav
Charge time: About 1 hour
Record time: About 12hrs
REC bit rate: 32kbps/64kbps/128kbps/192kbps
Sampling rate: 48KHz
8GB: Can save about 90hrs recording
16GB: Can save about 180hrs recording
Playback time: About 6hrs
Size: 45*17*5mm | 
