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ZK-3002B 300W+300W Bluetooth-compatiable Amplifier Module
1.Description:
ZK-3002B is a DC 36V 48V 300W+300W HIFI Bluetooth 2.0 Amplifier Audio Module with Stereo which is perfect for DIY speakers and transponders. This module can receive Bluetooth music, as well as AUX and USB audio input.
This amplifier module is ideal for those who want to add a surround sound experience to their home theater, KTV, outdoor parties, and more. With its powerful 300W output and adjustable volume control, you can customize the sound according to your preference. It is also easy to install and use, allowing you to enjoy an immersive sound experience with minimal effort.
2.Features:
1>.Dual Stereo: It has a built-in TPA3225 amplifier chip and adopts the Bluetooth version 2.0 specification which can drive high power 300W*2 Stereo with aluminum heat sink with DC 18V-50V work voltage and more than 10A current.
2>.Bluetooth APP Control : It can not only be used as an ordinary Bluetooth receiver, but also use the special Bluetooth APP ‘ Wuzhi Audio ’ to Modify Bluetooth Name, ON/OFF Bluetooth Password, Modify Bluetooth Password, ON/OFF Prompt Voice, Adjust Volume for Prompt Voice.
3>.Bluetooth/AUX/USB Audio: It can not only receive music via Bluetooth, but also via AUX/USB to fit different needs. Users also can DIY modify the input LINE to decode audio signals from decoder.
4>.Protection Function : It has multiple protection mechanisms to ensure its safe operation with over-current protection, short-circuit protection, overheating protection, under-voltage protection. Recommended to use more than 10A current to get more clear, bright and high fidelity sound.
5>.Application: Perfect for home theaters, KTVs, outdoor parties, and more, this Bluetooth amplifier will improve sound quality and provide a surround sound experience. It is easy to install and use, allowing you to experience an immersive sound with minimal effort.
6>.Easy to use: It is equipped with an adjustable volume control, allowing users to customize the sound according to their preference. Furthermore, it also provides functions such as switching to the next music, playing/pausing music, and turning on/off the power.
3.Functions:
1>.Bluetooth APP Control
2>.Bluetooth/AUX/USB Audio Input
3>.300W+300W Dual Channel Stereo
4>.Modify Bluetooth Name and Password
5>.ON/OFF Bluetooth Password
6>.ON/OFF Prompt Voice
7>.Adjust Volume
4.Parameters:
1>.Work Voltage: DC 18V-50V
2>.Work Current: >10A
3>.Controller IC: TPA3225
4>.Unique function: WuZhi Audio APP control
5>.Channel: 2.0 channel stereo output
6>.Audio input type: Bluetooth/AUX/USB
7>.Audio output type: Left/Right
8>.Music file format: MP3/WMA/WAV/FLAC/APE
9>.Output Power(Max): 300Wat50V4ohm/160Wat50V8ohm
10>.Communication distance: 15meter(Max)
11>.Over temperature protection: Yes
12>.Over current protection: Yes
13>.Short circuit protection: Yes
14>.Under voltage protection: Yes
15>.Work Temperature: -20℃~85℃
16>.Work Humidity: 5%~95%RH
17>.Module Size(Installed): 147*72*37mm
5.Note:
1>.The power amplifier board should be placed as far away from the WIFI signal (router) as possible to avoid signal interference.
2>.The power supply voltage should be DC 18V-50V with more than 10A current. The module will be damaged if the input voltage is above 53V.
3>.It is recommended to use a working power supply of more than 36V.
4>.Avoid signal interference by not using excessively long wires.
5>.The audio input and power supply voltage/current must both be sufficient to ensure enough power output.
6>.The higher the power supply voltage, the greater the output power.
7>.The smaller the impedance of the speaker, the greater the output power. It is recommended to use 4ohm speakers.
6.Use steps:
1>.Using the wiring diagram, select the correct speakers to connect to the black terminal.
2>.Connect the power supply from the power socket and wait for the ‘ding dong’ prompt to indicate the module is ready for pairing.
3>.Activate Bluetooth on your phone.
4>.From the Bluetooth device list, select the ‘WuZhi Audio’ device.
5>.Once the device is selected, the module will prepare start playing music.
6>.Adjust the volume using the rotary potentiometer. Rotate the knob clockwise to increase the volume.
7>.Press the potentiometer once to play/pause the music.
8>.Press the potentiometer twice to switch to the next music.
9>.Press the potentiometer three times to switch to the previous music.
10>.Keep the potentiometer more than 3second can turn ON/OFF work status.
11>.Search/download/open APP ‘WuZhi Audio’ without register if need control by APP. Note: This app can be used directly without the need to register.
12>.Select the ‘+ add device’ at the top line to add device.
13>.Automatic Select and select devices WuZhi Audio’ or Modified Bluetooth name.
14>.User can reset name, enable/disable/set password, enable/disable Bluetooth prompt tone.
ICStation doesn't accept any form of pay on delivery. Items used to be shipped after payment. Below are the payment methods we can accept at the moment:
1) Paypal Payment
PayPal is a secure and trusted payment processing service that allows you to shop online. PayPal can be used at icstation.com to purchase items by Credit Card (Visa, MasterCard, Discover, and American Express), Debit Card , or E-check (i.e. using your regular Bank Account).
We are PayPal Verified 
2) Bank Transfer / Wire Transfer / T/T
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Bank Transfer / Wire Transfer / T/T payment methods are accepted for orders which the total price is up to US$300. The bank will charge about US$50 for the transfer fee if we do the payment in these ways. Feel free to contact us for bank payment details if you need pay via bank.
For other payment method, please contact us at orders@icstation-team.com for more details.
We offer worldwide FREE shipping for all orders over $20 USD! Below are the details for our different shipping methods:
1. Regular Shipping: Yanwen / YunExpress / 4PX / China Post Airmail Service
(1) Shipping Fee: $3~$5
All orders will be shipped via standard normal post with tracking number service, which can be tracked on our website.
Note:
1.Shipping fee to USA, Australia, Newzealand is $3 usd. The other countries need $5 usd.
2.Any order (from any country) price is more than $20 USD, you won't need to pay the $3~$5 USD registered shipping fee.
(2) Delivery Time
Most countries can expect delivery within 7-20 business days, depending on your location:
7-15 working days: Most of Asia countries
10-16 working days: USA, Canada, Australia, UK, Most of Europe countries
20-40 working days: Brazil, Most of South America countries
Important: Since 2021, sellers outside the EU must provide an IOSS VAT number and pay for the VAT billing monthly to ship to EU countries. Therefore, we charge the VAT fee in advance for EU customers. Rest assured, they will not be charged the VAT fee again when the package arrives.
2. Express Shipping: DHL / FedEx / UPS
(1) Shipping Fee: Free for orders that meet the following requirements:
Total price of the order is over $200 USD
Note:
1. For European countries, please provide Tax/EORI Number when you need this shipping.
2. Any import tax/duties fees are on buyer's side. We are not responsible for it.
(2) Delivery Time
Most countries can expect delivery within 7-10 working days:
Asia: Japan, South Korea, Malaysia, Singapore, Thailand, Vietnam, Cambodia, Indonesia, Philippines
Oceania: Australia, New Zealand, Papua New Guinea
Europe & America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Important Notes:
1.Please provide a physical address for order delivery since DHL and FedEx cannot deliver items to APO or PO BOX addresses.
2.The recipient's contact phone number is required by express shipping agencies for package delivery.
3.EU customers must provide a VAT and EORI number for express shipping. If you can't provide either number, consider using regular post shipping.
4.Korean customers must provide CNEE'S PCCC or date of birth for custom clearance when using express shipping.
5.Brazilian customers must provide the CNPJ or CPF number for custom clearance when using express shipping.
6.For Taiwan customers, we default to the ShunYou Post courier. If you need Express S.F. Shipping, please provide one of the following:
Taiwan local ID card (such as A+9 digits)
Passport
Local residence permit
Company name and Unified Business No.
Other Important Information
7.Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed.
8. During annual Chinese holidays (e.g. Chinese New Year, Chinese National Day), delivery for orders placed around these times may be delayed by 3-7 days.
9.Once your order is shipped, you will receive an email notification from icstation.com.
10. For tracking your order with a tracking number, please visit the following websites:
Regular shipping: www.17track.net/en
4PX: en.4px.com/
DHL: www.dhl.com
FedEx: www.fedex.com
We hope this information helps you understand our shipping and delivery policies. If you have any further concern, feel free to contact us via email orders@icstation-team.com, thanks for your attention.
