eBay

Features:
1. This power amplifier board is powered by 5.0 5V 3A. After secondary development by peripheral hardware, the maximum power can be configured to 20W: Bass 10W + sub-box 10W (5W * 2).
2. Therefore, this power amplifier board has strict requirements on the power supply and the speaker, especially the woofer.
3. (Satellite) left and right channel sub-box speaker: select 4 Ω / 5W full-range speaker. (Please use 4 Ω and 3W for USB power supply)
4. Woofer: Choose 3 - 4 Ω 10W-15W Woofer. Never use 6 Ω or 8 Ω woofer. (Please select 4 Ω 5W for USB power supply)
5. Audio source: optional MP3, MP4, computer, PC, mobile phone, etc.

Specification:
: 5.0
Power supply: DC voltage 5V (4.8-5V), current should be 2.5A-3A or more
Maximum power: 20W
Package weight: approx. 29g

Package list:
1 * Module
3 * Connection Cable

1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties.
2. duties,taxes,and charges are not included in the item price or shipping fee.
3. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase.
4. All disputes arising from the duties will be submitted to ebay for solution.

1. Any questions, pls. contact us via ebay message or email us.We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails.

2. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5 " in very area
3. Our aim is to provide Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy.

We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.

https://image-us.chengykj.com/upload/third_resource/image/shipc73.jpg