EP820 Bluetooth Headset Manual

 

product description

BT version: 5.0 Working temperature: -10℃ to 45℃

Charging time: about 50 minutes

Music time: about 5 hours (medium volume)

Chip type: QCC3020 Audio decoding: aptX, AAC, SBC

Speaker type: 6MM full frequency graphene diaphragm speaker

Frequency response range: 20-20KHz

Standby time: 15 days

Connection distance: 15 meters

Button type: touch button

Supported models: It can be used in conjunction with Bluetooth devices that support HFP/HSP/A2DP/AVRCP protocols, such as mobile phones, computers, etc. for calling, listening to songs and other functions.

Headphone battery capacity: 35mA/h

Mobile charging box

Input current: 5V350mA

Output current: 5V50mA/h

Charging box battery capacity: 350mA/h

Charge times: about 4 times

 

Features

Power on: When the charging box is opened and the cover is automatically turned on/off, press and hold the power button for 3 seconds to turn on, the blue light is always on for 1 second, and the headset has a pure tone boot prompt. At this time, the headset enters the reconnection state. If there is a paired and connected device nearby, it will automatically return Connect to the device, if there is no device, wait for about 5 seconds. The main ear will automatically enter the device pairing state, and the red and blue lights will flash alternately to enter the device pairing mode

Pair and connect with the device: Turn on the phone and turn on BT, search for the “EP820” device, click on the device to pair, the LED light will go out after the connection is successful, and the phone will display “EP820” connected.

Note:

1: Apple mobile phone: search for “EP820” device, click on the device to pair successfully, wait for about 3 seconds, a dialog box will pop up automatically, also click connect, this connection is a dialog box for the right ear headset alone

2: Android phone: search for “EP820” device, click on the device to pair successfully, wait for about 3 seconds, a dialog box will pop up automatically, also click connect, this connection is a dialog box for the right ear headset alone

Reset:

If the pairing of the earphones is artificially disrupted (the factory defaults have been paired to complete the pairing of the ears), you need to restore the factory settings. When the earphones are turned off, press and hold for 8 seconds until the red and blue lights on both sides of the earphones flash quickly in sync (The light is pink) status, let go and put it aside. After a few seconds, after the two ears are paired successfully, the L main earphone automatically enters the device pairing mode, the red and blue lights flash alternately, and you can connect the device according to the above sequence.

Shut down:

Put the earphone into the charging compartment and close the cover to automatically shut down. When charging/turning on, press and hold for 5 seconds to shut down, the red light is always on for 1s, and the earphone has a pure tone prompt.

General functions:

Play/pause: click on the main/secondary ear, the prompt tone: beep

Next song: Quickly click the right ear three times, and the prompt tone: beep

Previous song: Quickly click the left ear three times, and the prompt tone: beep

Volume up: double-tap the right ear quickly, prompt tone: beep

Volume reduction: quickly double-click the left ear, prompt tone: beep

Answer the call: click the primary/secondary ear for the incoming call status, and the prompt tone: beep

Hang up the call: Click the main/secondary ear in the call state, and the prompt tone: beep

Rejecting a call: Press and hold the main/secondary ear for 2 seconds in the call state, and the prompt tone: beep

Enable Siri: Long press the main/auxiliary ear for 2 seconds to enter the voice assistant, the prompt tone: Di

Device disconnection: the mobile phone turns off Bluetooth, the main headset automatically enters the device pairing mode, the red and blue lights flash alternately, Auto-reconnect: when the battery compartment is opened, it will automatically reconnect to the last connected device. If it is out of range, it will automatically enter the device pairing mode within 5 seconds.

Low power prompt: Low power prompt when voltage is lower than 3.3V, prompt tone: BatteryLow, red light on for 1 second every 5 seconds       Automatic shutdown: automatic shutdown without connection for more than 5 minutes or battery voltage less than 3.0V

 

Headphone indicator status:

Power on: the blue LED will be on for 1 second and then power on

Shutdown: the red LED will be on for 1 second and then shut down

Earphone pairing mode: red and blue LED lights flash simultaneously (pink state)

Device to be connected mode: red and blue LED lights flash alternately

The device is connected to the standby state: the blue LED light is off

Call status: blue LED light off

 

Status of charging box indicator light:

1: Charging the charging box: plug in the USB charging cable, the red light is always on during the red light, and the green light is always on after the full charge;

2: Charging the earphone with the charging box (no external charger): Put the earphone into the charging box and discharging (charging the earphone) after the cover is closed, the blue light is always on, and the blue light is off when the earphone is fully charged

3: The charging box is fully charged (plug in): the green light is always on (the red light is always on during the charging process)

4: Battery power display: 100%-80% power, the blue light of the headset is always on when the headset is fully charged, and the red light flashes every 5 seconds when the power is less than 20%.

 

Operating procedures

Please fully charge the headset every time you use it, and reserve enough power for the device or mobile phone you pair with it.

Turn on the headset and put it into pairing mode (red and blue LEDs flash alternately), as close as possible to the phone to be connected.

Turn on the phone and turn on the BT function, click the search button, search for the device and click to connect. After a few seconds, the connection is successful, the LED turns off, and the phone shows that the device is connected. Use the mobile phone to make calls and listen to songs, you can hear the sound from the dual earphones, and the operation is complete.

 

Common problems and their solutions

Failure phenomenon	cause of issue	Solution
Can’t turn on/the headset turns off automatically	Low battery	Charge the headset for 0.5-1.0 hours
Silent after pairing	Incorrect pairing	Re-pair
Can talk, but the red indicator light is on	A red light appears when the battery is low	Please charge the headset immediately
No indication of charging	Charger no voltage output	Check if the charger is plugged in or the power switch is turned on
The earphone has echo	The volume is too loud or the environment is too noisy	Adjust the volume or change the location
Noisy calls	Environmental interference or the distance between the headset and the device is too far	Change a location or bring the headset closer to the device
Both sides have low voices	Incorrect headset	Adjust the position of the headset
Can’t listen to music	Phone does not support	Phone does not support

 

 

Precautions

Do not drop, hit, scratch, twist, knock, crush, or put the earphones in water;

When using headphones, please keep them away from magnets, electrical appliances and speakers;

Try to avoid placing the earphones in extreme temperatures (the working environment temperature range is -10℃~45℃);

Avoid exposing the headset to a humid environment.

 

reset:

If the pairing of the earphones is artificially disrupted (the factory defaults have been paired to complete the pairing of the ears), you need to restore the factory settings. When the earphones are turned off, press and hold for 8 seconds until the red and blue lights on both sides of the earphones flash quickly in sync (The light is pink) status, let go and put it aside. After a few seconds, after the two ears are paired successfully, the L main earphone automatically enters the device pairing mode, the red and blue lights flash alternately, and you can connect the device according to the above sequence.