CHE-640 Wireless Earbuds User Manual
- June 3, 2024
- Earbuds
Table of Contents
640 Wireless Earbuds
User Manual
For a better sound quality experience, suggest using iOS 8.0/Android 4.3 or above operating system.
Product Picture
1.2. Earbuds sound hole
3. Charging contacting fri
4. Ear-tips
5.6. Microphone
7. Touch control panel
8. Indicator light
9. Type-C output port
10. Charging slot
11. Charging case indicator light
Power on/Power off
Power on
- Long press MFB for 3 seconds under shutdown status.
- Open the charging box and take out the headset to start the machine automatically.
Power off
Option 1: Shut down for 10 min under no connection state.
Option 2: In any state, put it into the charging chamber to shut down for
charging.
How to Connect
For the first time pairing, take the earbuds out of case and search bluetooth “CHE-640” non your phone, and tap to connect. (Earbuds will auto reconnect to the last time device in connectivity records).
Functional Operation
Music
| Press X1: Either earbud for Pause/Play.
Press X 2: The left earbud for previous song; The right earbud for next
song.
Incoming Call
| Press X 1: Either earbud to answer a call/End a call.
Long press 2s: Either earbud to reject a call.
Sid Voice Assistant
| Press X3: Activate Sid voice assistant.
Mode Switch
| Press Xl: Left earbud to ANC mode;
Press X3: Right earbud to Gaming mode.
Volume adjustment
| Long Press 2s: The left earbud to reduce the volume (—); The right
earbud to increase the volume (+).
How To Charge
- Earbuds: Put left/right earbud into the charging case and close the lid.
Earbuds lights indicator
- In charging: Red light flashing.
- Full charged: Red light will be off.
- Charging case: Charging the case with included cable and your DC5V/ 1A adapter.
Case lights indicator
- In charging: Blue light flashing.
Full charged: Blue light keep on.
Specification
| Model | CHE-640 |
|---|---|
| Bluetooth version | V5.3 |
| Frequency | 20Hz–20KHz |
| Impedance | 32Ω |
| Supported codecs | SBC, AAC |
| Profile | HFP, HSP, AVRCP, A2DP |
| Transmission range | 10m |
| Earbud battery | 50mA h |
| Charging case battery | 400mAh |
| Speaker size | Φ10mm |
| Talk time | About 6H(ANC off), About 4.5H(ANC on) |
| Music time | About 6.5H(ANC off ), About 5H (ANC on) |
| Standby time | About 45H(ANC off), About 5H(ANC on) |
| Earbuds charging time | About 1.5H |
| Case charging time | About 1.5H |
Attention
- Do not remove or refit earbuds for any reason, otherwise it will lead to headset damaged and burn. These are not covered by warranty.
- Do not touch the earbuds in corrosive liquid, otherwise it will cause serious damage. The manufacturer will not guarantee the damage caused under this situation.
- Do not put the equipment under too high or too low temperature Below 0°C or above 45°C).
- Please avoid approaching the eyes of children or animals when using equipment lights.
- Do not use equipment in the thunderstorm weather. Thunderstorms may cause abnormal equipment operation and increase the risk of electric shock.
- Due to the limit of the environment & connection distance for the bluetooth products, do not use our earbuds in large electromagnetic interference and radiation environment.
- While driving, try to avoid using earbud to listen to music, make or receive calls, so as not to distract from danger.
Warning
This product contains a built-in lithium battery. Please do not expose this
product to strong sunlight, roasting or throwing it into the fire, as they may
explode.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications to this device not explicitly
approved by manufacturer could void your authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
RF Exposure Information
The device has been evaluated to meet general RF exposure requirement. The
device can be used in portable exposure condition without restriction.