working volatge;AC 12V-15V
Size:15.8*6.4cm
The board uses PT2399 responsible for the echo sound processing, using the Texas Instruments field effect quad op amp TL074 responsible for audio signal amplification and sound processing. Also added a new 5V output can be connected Bluetooth decoder board, the use of more convenient. In addition the Kara OK board also uses two-way microphone input (compatible with electret microphone)
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1. All merchandise will be carefully test before shipping. We will try our best to avoid any quality problem.
2. We promise warranty for quality in one year and we will repair it free of charge. The returning shipping should be paid by customer.
3. If you are not satisfied with the product, Please contact us. We'll provide you a satisfying solution.
1.Normmly we will send the goods within 1-3 working days after your payment is verified .
2.Please check if the goods are in good condition and sign before the delivery man leaves.If you find the product is lost or damaged on the way. Please take photo and let the delivery men confirm it. Then we will help you let the shipping company compensate you.
On Oct-15-20 at 06:08:11 PDT, seller added the following information: