Product name: K21 Business Bluetooth Headset 4.2
Bluetooth version: 4.2
Use radius: 8-12 meters
Battery capacity: bare battery 300 mAh rechargeable battery 800+300 mAh
Charging time: about 2.5 hours
Listening to the song time: about 24 hours for bare clothes, 72 hours for charging.
Call duration: about 32 hours for bare clothes, 96 hours for charging
Support language: Chinese / English
Model: K 21
(2) Basic functions:
Answer/Hang Up: Short press the multi-function button
Reject: double-click the multi-function button
Up and down music operation: double click on the next song
Play/Pause: Short press the multi-function button
Power on: long press 3 seconds multifunction button
Shutdown: long press 4 seconds multifunction button
Pairing operation: long press 5 seconds multifunction button
Switch between Chinese and English: pairing status or no connection phone status, press and hold for 1 second to release
Auto Sleep: The headset automatically shuts down after 5 minutes of disconnection from the phone.
3) Indicator light:
Light status when booting: blue light flashes once
Indicator status when powering off: blue light flashes three times
Indicator status when pairing: blue light is always on
Indicator status after pairing is completed: indicator is off
Indicator status when the headset is charging: the charging blue light is always on
Headphone full charge indicator status: full of blue light off
(4) Voice prompt:
Enter the mating status
Refuse to answer the call
Bluetooth is disconnected / Bluetooth is connected
(5) Charging method:
Please use the 5V/1A charger to charge the headset. If it is fully charged, please disconnect the power.
Applicable products: Apple/Samsung/Huawei/Millet and other models of smart phones, tablets such as Pad, laptops, desktop computers (computers without Bluetooth configuration need to purchase Bluetooth adapters).
(1) It has a lot of power and can stand for 70 days.
(2) Independent metal cavity design, shielding interference, reducing distortion, pure tone, high sensitivity and large momentum speaker, fine sound quality, effectively protect your ears from noise.
(3) Multi-function key, CD pattern technology, the touch is not directly slippery. Metal buckle, beautiful and firm, not easy to fall off. Comfortable ear cap, fits the ear canal, it does not swell when worn.
(4) The ear-hook design, the earphones are hung on the eardrum and fully fit with the eardrum, which is comfortable and soft.
(5) Surface rubber oil coating, such as skin-like delicate touch, comfortable to wear.
(6) Rotating design, the earphone head adopts 180 degree free rotation design, and the left and right ears are freely converted to wear.
(7) It can be sweat-proof and waterproof, and the precision mold design can be used normally without pressure even if it is sweaty.
(8) Headphone power display in real time, compatible with 99% of Bluetooth devices.
charging cable *1
charging bin *1