MAIRDI M891BT Wireless Communication Headset User Guide

891BT Series
Wireless Communication Headset
USER GUIDE

M891BT Wireless Communication Headset

Pairing Name: M891BT
Bluetooth Speification: V5.1, dual mode, downward compatible
Frequency Range: 2.4GHz-2.480GHz
Support Protocols: A2DP, AVRCP, HFP, AAC, etc
Two Bluetooth devices can be connected at the same time
Transmission Distance: up to 30 meters (Transmission distance depends on the environment and Bluetooth device)
Maximum Talk Time (70% volume): Binaural (40 hours), Monaural (22 hours)
Standby Time: 200 hours
Working Temperature: 0 C to 45C
Speaker:
Frequency: 20Hz-20KHz, Hi-fi
Distortion: 1%
Sound Channel:
Binaural: Stereo
Monaural: Mono
Microphone:
Microphone: Directional noise reduction microphone
Acoustic Noise Canceling Structure
Crystal clear sound and voice (DSP)
Headset Battery:
Type: Lithium-ion polymer
Battery Capacity: Binaural (320mAh), Monaural (180 mAh)
Charging Voltage: 5V DC
Life Time: Minimum recharging 1000 times
Operating Temperature: -10C to +60 C
Charging Time: 2 hours
Charging Interface: Type-C USB
Charging Base:
Net Weight: 113g
Headset Net Weight:
M891BT Mono 84g
M891BT Duo 120g

Button Function

when playing music
Mic Mute| Mic mute| Press the mute button to activate mic mute during a call, there will be “toot” every 10 seconds while mute, repress the mute button to cancel mic mute
Minus Button| Volume down| Press the Minus button to decrease the speaker volume
Last song| Long press the Minus button for 2 seconds to switch to last song when playing music
Multi-function
Button (MFB)| Pause /Play| Short press MFB when playing music
Answer/end call| Short press MFB to answer/end mobile calls
Reject call| Long press MFB for 2 seconds to reject mobile calls.To reject the second incoming call when on the first call, press and hold MFB for 2 seconds.
Multi- function Button| A three-party call| Short press MFB to answer the 2nd incoming call and hang up the 1st call.
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Double press MFB to answer the 2nd incoming call and reserve the 1st call.
Long press MFB for 2 seconds to keep the current call and reject new call.
During a three-party call, double press MFB to switch between the current call and the reserved call.
During a three-party call, short press MFB to end current call and meanwhile switch to another call, short press MFB again to end the 2nd call.
Activate voice
assistant| Long press MFB for 2 seconds then release

Prompt Tone Introduction

Headset LED Indicators

Pairing with Bluetooth Device:

1. Be sure that your smart phone, laptop or desk phone has Bluetooth function.
2. Activate the Bluetooth function on your smart phone, laptop or desk phone.
3. Tum on your headset (slide switch to “ON”), you can hear prompt tone “power on’. The Led indicator will flash red and blue alternately, which indicates the headset is in pairing mode.
4. (If pairing fails, the headset will power off automatically after indicator flashes 10 mins, with prompt tone “power off heard.)
5. Pair headset to your smart phone, laptop or desk phone.

1. Search Bluetooth device on your smart phone, laptop or desk phone.
2. Open “Bluetooth” menu and press “discover” or “add” to search M891BT on your smart phone, laptop or desk phone.
3. When M891BT shows on your Bluetooth devices list, please click it to start pairing. Prompt tone “connected” will be heard when pairing is successful, and the LED indicator will repeatedly flash blue every 5 seconds.
4. This headset can store devices ever paired in memory. When powered on, the headset will automatically connect to the first two devices in memory.

Function Introduction

1. Pair with 2 devices simultaneously
   M891BT can pair with 2 devices simultaneously.

1. Connect the first device with M891BT
2. Tum off the Bluetooth function of the first device
3. Connect the second device with M881BT
   Tum on the Bluetooth function of the first device, click to reconnect “M891BT” on Bluetooth list.
   Headset is now connected with both devices.

2. Redial function
   Quick press the multi-function button twice to redial the last call.

3. One-touch play function
   Quick press the multi-function button once, the default music player of the mobile phone will play automatically (some mobile phones cannot implement this function).

4. Automatic re-connection function
   Bluetooth connection can be automatically re-connected if disconnected within 10 minutes in the effective distance. If reconnect fails, please turn off the headset and turn it on again to reconnect.

5. Mic mute function
   Press the mute button to activate mic mute during a mobile call, repress the mute button to cancel mic mute. The tone “toot” will be heard every 10 seconds during mic mute status.
   The mic mute function may not be available on softphones in computers because the softphone systems limited.

6. Three-party Call

1. Short press MFB to answer the 2nd incoming call and hang up the 1st call.
2. Double press MFB to answer the 2nd incoming call and reserve the ist call.
3. Long press MFB for 2 seconds to keep the current call and reject new call.
4. During a three-party call, double press MFB to switch between the current call and the reserved call.
5. During a three-party call, short press MFB to end current call and meanwhile switch to another call, short press MFB again to end the 2nd call.

7. Activate voice assitant
   In the state of no calling, press the MFB for 2 seconds to activate voice assistant on mobile phone.

8. Reset Function
   Press and hold the plus and minus buttons simultaneously for 5 seconds, there will be prompt tone “toot, toot”. Pairing history record will be deleted when prompt tone” disconnected” heard.

Cautions

1. Most mobile phones will display headset power level on the screen. When headset battery is low, the headset will beep once in 5 minutes and the indicator will tum red. Please charge it in time.
2. Do not connect the full-charged headset to the charging circuit for a long time. Overcharging will shorten battery life.
3. Please keep the headset battery safe. Do not put the battery or the headset into fire or water to avoid explosion.
4. Do not use headset with high volume for extra long time, which may cause hearing loss. Always listen at a moderate level.
5. Don’t charge with high voltage device, which may cause damage to the headset.
6. Make sure that the headset is fully charged before using it if unused for a long time.
7. Lifetime of the battery will be significantly reduced if your device is left uncharged for a long time. We therefore recommend that you recharge your device at least once a year.
8. Please reset the headset if it cannot work well.

Product Warranty Card

Customer Name| | Product Model No.|
---|---|---|---
Date of Purchase| | Tel No./E-mail:|
Problem Description:|
Microphone| Speaker| Battery| Buttons
| | |
Warranty:
Failure of headset buttons, speaker or microphone; charge unavailable. Out of Warranty:
1.Ear cushions broken.
2.Fail to follow the user manual or disassemble the headset.
3.Incorrect connection with high voltage device for charging which causes earphone damage.
4.Artificial damage caused by impact, falling, water, pulling.
OQC CHECKING|

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