Wenzhou Zhirong Health & Science Technology Co., Ltd
WLT3266 User Manual
Product Name：
Dual mode bluetooth module
Model ：WLT3266
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1. Introduction
Thank you for using the Bluetooth 5.0 module product provided by Wenzhou Zhirong Health & Science
Technology Co., Ltd. Before use, please read this user manual carefully. Please follow the technical specifications
when using the module in your design and develop activities. Wenzhou Zhirong Health & Science Technology Co.,
Ltd has the right to change the contents of this manual in accordance with the needs of the technical development.
FCC application:
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.
L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2)
l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d'en compromettre le fonctionnement.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
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.
MPE Requirements
To satisfy FCC RF exposure requirements, a separation distance of 20 cm or more should be maintained between the
antenna of this device and persons during device operation.
To ensure compliance, operations at closer than this distance is not recommended.
Les antennes installées doivent être situées de facon à ce que la population ne puisse y être exposée à une distance
de moin de 20 cm. Installer les antennes de facon à ce que le personnel ne puisse approcher à 20 cm ou moins de la
position centrale de l’ antenne.
La FCC des éltats-unis stipule que cet appareil doit être en tout temps éloigné d’au moins 20 cm des personnes
pendant son functionnement.
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Region Selection
Limited by local law regulations, version for North America does not have region selection option.
Label
Host labeling requirement: Contains transmitter module FCC ID：2AXSR-COZYMATE001.
2．Product Information
2.1 Product Information
WLT3266 is an audio Bluetooth module , and a single chip audio Bluetooth solution
based on BK3266.Audioprotocol stack with built-in Bluetooth and various
applications profile, It can easily realize the interconnection, data transmission, voice,
music and other applications of the user's Bluetooth device.WLT3266 is an audio
Bluetooth module, which supports audio codec. Audio Bluetooth protocol stack is
integrated in the module to support a variety of traditional Bluetooth applications and
low-power Bluetooth applications. For example: HFP, A2DP, AVRCP, etc.Support
Bluetooth, HFP, A2DP, hid, AVRCP Support transparent / protocol data
transmission mode, provide at + instruction set configuration, support UART
communication interface, UART interface up to 3mbps. Built in 16 bit audio DAC
and 16 bit audio ADC, built-in caps headset power amplifier, built-in mic bias
voltage and amplifier circuit, support analog audio input PCB antenna, customers can
also connect external antenna single power supply 2.8 ~ 4.2V stamp hole pin, easy
and reliable welding. Ultra small size: 13x27.2mm flexible software platform,
providing customized services
2.2 Feature
●Bluetooth 5.0
●operating Frequency 2.4GHz
2.3 Application area
Bluetooth Speaker Bluetooth music transponder Car Bluetooth hands-free
Health care Wireless POS machine Portable printer
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3. Product Specification
3.1 Parameter
BT Standard
Bluetooth BR+EDR &BLE(1M only)
BT Modulation Mode Bluetooth:
GFSK, π/4-DQPSK and 8-DPSK
BT Antenna Gain
3.0 dBi (MAX)
Max output power:
2.21dBm
4. Hardware information
4.1 basic information：（Unit:mm）
4.2 PIN definition
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4.2 audio spec
4.3 module size spec
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4.4 PCB layout
4.5Reference design
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5 EU single contact point
Wenzhou Zhirong Health & Science Technology Co., Ltd
6 Manufacture’s postal address
No. 129, North Liandong Road Clothing Garden, Kunyang, Pingyang, Wenzhou, Zhejiang
7 Importer’s name & address
Wenzhou Zhirong Health & Science Technology Co., Ltd
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8. The requirement for KDB 996369 D03:
8.1 List of applicable FCC rules
FCC Part 15. 247.
8.2 Summarize the specific operational use conditions
None
8.3 Limited module procedures
The module is a single module, so this requirement is not applicable to the product.
8.4 Trace antenna designs
The module uses the permanent PIFA antenna, so this requirement is not applicable to the product.
8.5 RF exposure considerations
The host device manufacturer should confirm that a separation distance of 20 cm or more should be
maintained between the antenna of this host device and persons during the host device operation.
8.6 Antennas
For Bluetooth: PCB antenna, 3.0dBi
8.7 Label and compliance information
If this certified module is installed inside the host device, then the outside of the host must be labeled
with “Contains FCC ID: 2AXSR-COZYMATE001 ”.
8.8 Information on test modes and additional testing requirements
The host manufacturer can use the software of Combo Tool to make the Bluetooth transmit
continuously, and the software of QA Tool to make the wifi transmit continuously.
8.9 Additional testing, Part 15 Subpart B disclaimer
The module only complies with the FCC Part 15.247. If the module is installed in the host device, the host
manufacturer is responsible for the compliance to any other FCC rules that apply to the host not covered
by the modular transmitter grant of certification. For example, if the host manufacturer markets their
product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity),
then the host manufacturer shall provide a notice stating that the final host product still requires Part 15
Subpart B compliance testing with the modular transmitter installed.
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dans d''autres langues
- English: ZHIRONG WLT3266 User manual
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