233621 ZEN - Page 11

Being Charged
Red light off: Battery Lever 100%
Red light always on: Being Charged
Not being charged
Open / Close the top cover of the
charging case
Flash white quickly: Battery power
is more than 30%
Flash red quickly: Battery power is
less than 30%
Touch function
Charging Case LED Behavior
Functions
Operations
Press twice/Put on
Press twice/Remove
Press and hold 2s
Press twice
Press once
Press once
Press twice
Operations
Press twice/Put on
Press twice/Remove
Press and hold 2s
Press and hold 2s
/
/
/
/
Music
Play
Call
Volume
Voice
Pause
Previous song
Next song
Pick/Hang up call
Reject call
Volume+
Volume-
Activate voice
assistant
Press twice and the second press hold for 2s
Left earbud Right earbud
Before using and operating the device, read and
follow the precautions below to ensure that the
equipment performs optimally and avoids
dangerous or illegal conditions
Voice Prompts
1. Power on: “Power on”
2. Enter pairing mode: “Looking for the device”
3. Pairing timeout: “Device not found”
4. Paring successful: “Beep”
5. Paring failure: “Beep”
6. Low battery: “Battery low” （≤10%）
7. Noise cancellation on: “Noise cancellation on”
8. Ambient on： “Ambient on”
9. Noise cancellation, Ambient mode are off: “off ”
10. Sound Max / Min： “Beep””
11. Power off: “Power off”
LED Behavior
Earbud LED Behavior
Flash white quickly: Power on but
not connected with any device
Flash white slowly: Power on and
connected with device
Flash red and white quickly:
Pairing mode
Flash red slowly: Battery low
when connected with device
Flash red quickly and slowly:
Charging (the power is less than 30%)
Flash red slowly: Charging (the
power is more than 30%)
LED off: Battery fully charged
Flash red quickly: Battery low
when not connected with any device
Specifications
Model: 233621® Zen
Driver: 10mm neodymium dynamic driver
Audio CODEC support: SBC, AAC, aptX
Frequency response range: 20 - 20,000Hz
Connections: USB-C cable for case charging
Battery charging: A 10-minute charge delivers up to
1-hour playback; less than 2 hours for a full charge
(when charging unit via USB-C cable and charging case)
Playback time: Up to 10 hours, total 22 hours with
charging case
Support: BT 5.0, A2DP v1.3, AVRCP v1.6, HFP v1.7, HSP v1.2
Bluetooth transmission frequency range: 2.402-2.480GHz
Bluetooth transmission power: <8.0dBm
Battery parameters: Single earbud: 3.7V, 85mAh
Charging case: 3.7V,500mAh
Water resistance rating: IPX4 (for earbuds only)
Weight: 6.6g (single earbud),53.6g (both earbuds
and case)
Regulatory Information
Informational Note for Customers
in U.S.A. Only:
Product service policy
2. Keep the volume within the allowable range to avoid
hearing damage. Prolonged exposure to high volume
might result in permanent hearing damage.
3. Exposure to high volume while driving may distract
attention and cause an accident.
4. Do not cover, seal or put other items on the device.
5. Keep the device away from heat sources or bare fire
like electric heaters, microwave ovens, stoves, water
heaters, candles or any place with high
temperature conditions.
6. Do not use an external heating appliance such as a
hair dryer or microwave to dry the device.
7. Avoid striking the device and its accessories to a hard
object or vice versa as it may lead the battery to
explode or might cause malfunction.
8. Wipe the device with a clean, dry, soft cloth. Do Not
use the device before cleaning and maintenance.
9. Use and store the device and its accessories in the
temperature range of 5°~35°. When the environmental
temperature is too high or too low, it may cause device
malfunction. The battery efficiency would be limited
when the temperature is lower than 5°.
10. Keep the device and its accessories in a ventilated
and cool environment without exposing it to direct sunlight.
11. This device is not a toy and children may use this
device under adult supervision. This device and its
accessories may contain small parts that should
keep away from children. Children may inadvertently
damage the device and its accessories, or swallow
small parts resulting in suffocation or other hazards.
12. The device is equipped with non-removable built-in
rechargeable battery. Do Not replace the battery by
yourself. The battery can only be replaced by
authorized service center.
13. Do not disassemble or modify the device and
accessories without permission, otherwise the device
and accessories will not be covered under warranty,
please contact the authorized service center when
the device malfunction is detected.
14. Do not dispose this device and its accessories as
ordinary household waste. Comply with the local
laws and regulations dealing with this device and its
accessories and support recycling.
15. In medical and health care facilities where the use of
wireless devices is prohibited, comply with the
regulations of such facilities and turn off the device.
16. Radio waves generated by devices may affect the
normal operation of implantable medical devices or
personal medical devices, such as pacemakers,
1. Do not use this device in dusty, humid, dirty
environment or places near magnetic field to avoid
malfunction of the internal circuit of the device.
3. “233621” word mark and logos are registered
trademarks of Shenzhen Grandsun Electronics
Co., Ltd. Reproduction in whole or in part without
written permission is prohibited. Other companies
and products mentioned herein are trademarks of
their respective owners.
Made in China.
1. The device warranty period is 12 months from the
date of purchase. Repair and maintenance service
are free during the warranty period, excluding
malfunctions are man-made.
2. The limited warranty shall not apply to:
a. man-made damage;
b. exceed the warranty period;
c. no warranty card and valid invoice (except those
can prove the product is under the warranty period);
d. the warranty card is altered or not complied with
the device itself;
e. the SN label on device is torn off (except those can
provide warranty card and efficiency invoice);
f. accessories damage due to improper use
and maintenance;
g. disassemble or amend the device without
manufacturer authority or water and smashing damages;
h. damages due to force majeure.
3. Service Information
233621 Website:www.233621.com
1. You are cautioned that any changes or modifications
not expressly approved in this manual could void your
authority to operate this device.
2. 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
(2) this device must accept any interference received,
including interference that may cause undesired operation.
3. This device 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 device
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 device does cause
harmful interference to radio or television reception,
which can be determined by turning the device off
and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
(1) Reorient or relocate the receiving antenna.
(2) Increase the separation between the device
and receiver.
(3) Connect the device into an outlet on a circuit
different from that to which the receiver is connected.
(4) Consult the dealer or an experienced radio/TV
technician for help.
4. This device must not be co-located or operated in
conjunction with any other antenna or transmitter.
cochlear implants, hearing aids, etc. If you use any
of these medical devices, consult their manufacturer
about the use restrictions of the device.
17. Keep the device at least 15cm away from the
implanted medical device such as pacemaker,
cochlear implants etc.
18. Use of unauthorized or incompatible power supplies,
chargers or batteries may cause fire, explosion or
other hazards.
Informational Note for Customers
in EU Only:
This device has been manufactured by or on behalf of
Shenzhen Grandsun Electronics Co., Ltd. Hereby,
Shenzhen Grandsun Electronics Co., Ltd. declares that
this device is in compliance with Directive 2014/53/EU.
This symbol on the device, the battery or on
the packaging indicates that the device and
the battery shall not be treated as household
waste. By ensuring these devices and
batteries are disposed of correctly, you will
help prevent potentially negative
consequences for the environment and
human health which could otherwise be caused by
inappropriate waste handling. The recycling of the
materials will help to conserve natural resources. In
case of devices that for safety, performance or data
integrity reasons require a permanent connection
with an incorporated battery, this battery should be
replaced by qualified service staff only. To ensure that
the battery and the electrical and electronic device
will be treated properly, hand over these devices at
end-of-life to the applicable collection point for the
recycling of electrical and electronic device. Hand the
battery over to the applicable collection point for the
recycling of waste batteries. For more detailed
information about recycling of this device or battery,
please contact your local Civic Office, your household
waste disposal service or the dealer.
This symbol is only valid in the European Union.
1. The Bluetooth® word mark and logos are registered
trademarks owned by Bluetooth SIG. Inc. And any use
of such marks by Shenzhen Grandsun Electronics
Co., Ltd. is under license.
2. Qualcomm aptX is a product of Qualcomm
Technologies International, Ltd. Qualcomm is a
trademark of Qualcomm Incorporated, registered in
the United States and other countries, used with
permission. aptX is a trademark of Qualcomm
Technologies International, Ltd., registered in the
United States and other countries, used with permission.
Trademarks