ACREO M20 TWS Wireless Earbuds User Manual
LED LIGHT
| Operating status | LED indicator |
| Power on | The White light is on for 1 second |
| Power Off | The red light is on for 1 second and flashes twice |
| Charging | Red Flashing means on the charging, the red light is always on when fully charged |
| Pairing status | Red and White lights flash alternately |
| Bluetooth mode |
The White light flashes once in 5 seconds |
| Standby mode | |
| Auto connect | |
| Incoming call |
The White light flashes once in 5 seconds |
| Disconnect | |
| Play music |
BASIC OPERATION
Power On
Press and hold the “touch area 
” for 3 seconds to turn on the headphone.
Power Off
When the headset is turned on, press and hold the “touch area ” for 5 seconds to turn off the headset.
Headphone pairing
The first:
When the earphone is in the state of the charging compartment, the left and auxiliary earphones are taken out from the charging compartment, and the primary and secondary earphones are paired. After the pairing is successful, the white light of the primary headset flashes once in 8 seconds.
Second:
The headset is not in the charging compartment state, and the left and right are held down by the”touch area “for 3 seconds. When the machine is turned on, the left and right headphones are automatically connected back. After a successful back connection, the white light of the headset flashes once in 8 seconds, and the red and white light of the headset flashes alternately.
TOUCH DESCRIPTION
Play/pause/call
- Short press “touch area
” during music playback, music pause; - Short press “touch area ” when the music is paused, music playback;
- Short press “touch area ” when there is an incoming call, answer the call;
- Long press “touch area ” during the call to hang up the current call;
- Press and hold the “touch area ” when there is an incoming call, and refuse to answer;
- Long press the “touch area ” on either side of the L/R headset to activate the voice assistant like Siri.
- Quickly touch the earbuds three times to switch the music tracks, the left earbud switches to the previous track, and the right earbud switches to the next song
- When bluetooth is connected, press the L side twice in a row”Touch area “For the volume reduction, Press the R side twice in a row “Touch area “The volume increase.
PRODUCT MANUAL
MODE DESCRIPTION
Charging Mode
- A. Earbuds charging instructions When the earbuds are put in the charging case, the earbuds will be charged automatically if the charging case still has power. The LED in the case will light on white indicating the earbuds are on the charging and after fully charged the white LED will be turned off.
- B. Charging Case charging instructions When the charging case cannot charge the earbuds, it needs to be charged. Use Type C to plug in, the red light flashes during charging. When it is fully charged, the red light is always on.
Reset Mode
After long pressing the “touch area
Standby Mode
The device will shut down automatically after 3 minutes without any connection, and the red light will flash twice in 1 second.
SPECIFICATION
| Bluetooth Device Name | Acreo AirBuds |
| Compatible Bluetooth Profiles | A2DP / HSP / SPP / HFP /PBAP |
| Transmission Distance | ≥10m |
| Impedance | 32Ω ± 15% |
| Sensitivity | 103 ± 3dB at 1K HZ |
| Frequency band | 20 HZ ~ 20K HZ |
| Packing Accessories | |
| 1 : Bluetooth Headphone | 2 : Charging Cable |
| 3 : User Manual | 4、Ear-tips |
Like Warm and Prompt:
- .Please use USB power of 5V1A/5V2A for output when charged, it may damage the headset using charging equipment with high voltage.
- When the headset is not in use for more than three months, please use it after full charge.
- When not in use for a long time, it is recommended to charge the headset every three months to protect the battery life more effectively.
PRECAUTIONS
- Please Don’t place headphones in high temperatures, including strong sun exposure.
- Please Don’t place headphones near a fire or other hot environment.
- Please Don’t place headphones in wet or submerged in a liquid environment, keep them dry.
- Please use the specified charge cable offered by our company.
- Please don’t disassemble, repair, or reform it.
- Please note that excessive drop, impact, abrasion, or other acts affecting headphone function, if there is any damage, such as depression, puncture, tearing, deformation or corrosion, etc., please stop using the device immediately, and contact the seller or contact us by the service information on the warranty card.
- Please stop using the headphone immediately If the headphone produces an abnormal smell, higher than normal temperature, or abnormal changes in color or shape, and contact the seller or contact us by the service information on the warranty card.
