Wireless Communication Headset USER GUIDE
Model: M890BT
Product Specifications
Pairing Name: M890BT
Bluetooth Specification: CSR-V5.0, dual mode, downward compatible.
Frequency Range: 2.4GHz-2.480GHz
Support Protocols: A2DP, AVRCP, HFP, AAC, etc.
Multi-device Connectivity: Two Bluetooth devices can be connected simultaneously.
Transmission Distance: Up to 30 meters (dependent on environment and Bluetooth device).
Maximum Talk Time: 20 hours
Standby Time: 200 hours
Working Temperature: 0°C to 45°C
Speaker Specifications
Frequency: 20Hz-20KHz, Hi-fi
Distortion: ≤1%
Sound Channel: Binaural: Stereo, Monaural: Mono
Microphone Specifications
Type: Directional noise reduction microphone
Features: Acoustic Noise Canceling Structure, Crystal clear sound and voice (DSP)
Headset Battery
Type: Lithium-ion polymer
Capacity: 320mAh
Charging Voltage: 5V DC
Life Time: Minimum recharging 1000 times
Operating Temperature: -10°C to + 60°C
Charging Time: 2 hours
Charging Interface: Micro USB
Weight
Headset Net Weight: M890BT Mono 70g, M890BT Duo 95g
Net Weight (Charging Base): 115g
Headset Components and Indicators
This section describes the physical parts of the headset and their indicator lights:
- Blue LED Indicator: Displays battery, pairing, and audio status.
- Red LED Indicator: Displays battery, pairing, and call status.
- Multi-Function Button: Used for answering calls, hanging up, pausing, and playing music.
- Minus Button: Used for volume down and selecting the last song.
- Microphone Mute Button: Used to mute the microphone.
- Plus Button: Used for volume up and selecting the next song.
- Micro USB Charging Socket: Port for charging the headset.
- Gold-Plated Charging Dome: Part of the charging mechanism.
- On/Off Button: Used to power the headset on or off.
Button Functions Explained
| Button | Function | Action |
|---|---|---|
| On/Off Button | Headset on | Slide switch to icon "ON" |
| Headset off | Slide switch to icon "OFF" | |
| Plus Button | Volume up | Tap to increase speaker volume |
| Next song | Long press when playing music | |
| Mic Mute Button | Mic mute | Press to activate mic mute during a call. A "toot" tone is heard every 3 seconds while muted. Press again to cancel mic mute. |
| Minus Button | Volume down | Tap to decrease speaker volume |
| Last song | Long press when playing music | |
| Multi-function Button | Pause | Tap when playing music |
| Answer/end call | Tap | |
| Reject call | Long press for 2 seconds |
Prompt Tone Introduction
| Headset Status | Tone |
|---|---|
| Power on | Power on |
| Power off | Power off |
| Pairing Successfully | (No tone specified, LED flashes blue) |
| Volume up/down | "toot" |
| Battery Low | "toot" every 5 minutes |
| Mic Mute | "toot" every 3 seconds |
Headset LED Indicators
| Headset Status | LED Status |
|---|---|
| Pairing Mode | Light flashes blue and red alternately |
| Pairing Successfully | Light flashes blue repeatedly every 5 seconds |
| Battery Low | Light flashes red rapidly |
| Charging Mode | Red light continuously on |
| Fully Charged | Blue light continuously on |
| Audio Status | Blue light in the state of breathing, and the red light off |
| Call (Busy) Status | Red light in the state of breathing, and the blue light off |
Pairing with Bluetooth Device
- Ensure your smart phone, laptop, or desk phone has Bluetooth function enabled.
- Activate the Bluetooth function on your device.
- Turn on the headset (slide switch to "ON"). You will hear the "power on" prompt tone. The LED indicator will flash red and blue alternately, indicating pairing mode.
- If pairing fails, the headset will power off automatically after 5 minutes of flashing, with a "power off" prompt tone.
- Pair the headset to your device:
- Search for Bluetooth devices on your smart phone, laptop, or desk phone.
- Open the "Bluetooth" menu and press "discover" or "add" to search for "M890BT".
- When M890BT appears in your device's Bluetooth list, click it to start pairing. You will hear a "connected" prompt tone upon successful pairing, and the LED indicator will repeatedly flash blue every 5 seconds.
- The headset can store previously paired devices in its memory. When powered on, it will automatically connect to the first two devices in memory.
Function Introduction
- Pair with 2 devices simultaneously: Connect the first device with M890BT. Turn off the Bluetooth function of the first device. Connect the second device with M890BT. Turn on the first device's Bluetooth function; M890BT will then be paired with both devices.
- Redial function: Quick press the multi-function button twice to redial the last call.
- One-touch play function: Press the multi-function button once. The default music player of your mobile phone will play automatically (functionality may vary by mobile phone model).
- Automatic re-connection: Bluetooth connection can be automatically re-established if the headset remains within Bluetooth range (approx. 5 minutes). If reconnection fails, turn the headset off and then on again.
- Mic mute function: Press the Mute button to activate mic mute during a call. A "toot" tone will be heard every 3 seconds while muted. Press the mute button again to cancel mic mute.
Cautions
- Most mobile phones display headset power status on screen. When the headset battery is low, it will beep once every 5 minutes and the indicator will turn red. Please charge it promptly.
- Do not connect a fully charged headset to the charging circuit for extended periods, as overcharging can shorten battery life.
- Handle the headset battery safely. Do not expose the battery or headset to fire or water to prevent explosion.
- Avoid using the headset at high volume for prolonged periods, as this may cause hearing loss. Always listen at a moderate level.
- Do not charge using high-voltage devices, as this may damage the headset.
- Ensure the headset is fully charged before use if it has been stored for a long time.
- The battery's lifespan will be significantly reduced if the device is left uncharged for extended periods. It is recommended to recharge your device at least once a year.
Product Warranty Card
Warranty Information:
- Customer Name: [Not specified]
- Date of Purchase: [Not specified]
- Tel No./E-mail: [Not specified]
- Problem Description: Failure of headset buttons, speaker, or microphone; charge unavailable.
- Product Model No.: M890BT
- Warranty Coverage: Microphone, Speaker, Battery, Buttons.
Out of Warranty Conditions:
- Ear cushions broken.
- Failure to follow the user manual or unauthorized disassembly of the headset.
- Incorrect connection with high-voltage devices for charging, causing damage.
- Artificial damage caused by impact, falling, water exposure, or pulling.