KUNZHIYUAN ELECTRONICS K21 Bluetooth Speakers User Manual K21
SHENZHEN KUNZHIYUAN ELECTRONICS CO., Ltd Bluetooth Speakers K21
Users Manual
K21 manual user
Product features
1: It can be connected with the MP3,PC,iPod,CD and other audio source.
2: Non-volatile Memory.
3: Bluetooth :4.0 EDR.
4: Design in a high-quality audio decoder chip, perfect sound performance
Technical Parameters
Output power: 5W X 2
Input charging voltage: DC5V ± 10%
Output voltage and current: DC5V 1A
Frequency response: 20Hz-20KHz
SNR: ≥86dB
Distortion (%): ≤0.7
Bluetooth communication distance:> 10m
Operating Instructions
(1) Bluetooth Pairing
a: Short press the ON/OFF button to turn on, after that,it’s defaulted to be a Bluetooth
connection mode .
b:The first will enter a pairing mode when connecting with a Bluetooth device , the
machine called Bluetooth: K21, no password,click the K21 to connect ,the
connection will be successful .
c: After the pairing is successful ,the machine will automatically search for the last device.
If search ,Bluetooth device will automatically connect.If it do not search to the last device
within 10 seconds, then enter the status ------ wait for a connection .
d: When in a Bluetooth connection with your phone, press Play, Pause, call button, you
can answer /hang up, double- press the keys ,you can redial last phone number.
(2) LINE IN input function
When in a turned on mode， insert the LINE IN input line, it is automatically converted
to the LINE IN function; for mobile phones, computers, MP3 and other equipment to make
use of external speakers .
Notice
1, About the use of Bluetooth wireless environment, the wireless signal including
Bluetooth, applications greatly affected by the surrounding environment, such as trees,
Metal and other obstacles ,they will absorb a certain radio signal, which in practical
applications, the transmission of data impacts by a certain distance .The product uses a
highly efficient Bluetooth chip, providing a high-quality sound and compatibility, overall has
a better performance .Bluetooth uses driver-free, it can be transmitted music in a quick
and wireless way, enjoying wireless music .
2, The first use of the main engine , it is recommended to use the full power battery and
then to use , in order to get the best results,the sounds is not good when the machine in a
low battery than a full power battery.
3, please note that this product should not be placed in a high temperature environments .
Applications
The speakers mainly used for a short-distance transmission of music, it can easily
connected with notebook computers, mobile phones,IPDA and other digital
products,which have a Bluetooth device to achieve a wireless transmission of music,
Buttons and interface description
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: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.