V Telesky 15 Pcs\. Pam8403-Based Amplifier and 50 similar items

V Telesky 15 Pcs\. Pam8403-Based Amplifier Module, Miniature 2 Point 5V-5V Features: This miniature PAM8403 can be used with a computer USB port, USB power bank or cell phone charger to provide 5V support power, or it can be powered by battery. Class D amplifiers are highly efficient, at around 90%, while Class A, Class B and other amplifiers are only around 30% efficient. Class D amplifiers are extremely efficient and do not affect the sound quality due to temperature without adding a heat sink and taking up less space, and the noise cancellation circuit is built into the amplifier board Can provide 3W (left channel) + 3W (right channel) output power under 4 loads and 5V power supply conditions. No popping sound for power on/off. Module has short-circuit current protection, undervoltage lockout and overheat protection. Specifications. Operating voltage: 2.5V-5.5V Speaker equipped with: 4-8 ohms Recommended: 4 ohms Speaker power:2-8W Size: 21 x 18 x 3.4mm(L x W x H) Color:As shown in the picture Net weight:1g Package includes. 15*Super mini PAM8403 digital power amplifier board Product Features ?Super mini volume?:1.85 x 2.11 cm can be easily placed in a variety of digital products within a small space.double-sided wiring can properly solve the wiring caused by potential balance and crosstalk between channels ?Excellent noise suppression?:no audio input with ears close to speakers, no noise can be heard; unique Class D digital powerless board with LC filter can be powered directly from the computer's USB ?High efficiency amplification?:5V power supply can output 3W +3 W power, can be directly driven 4?, 8? small speakers,no sound quality even if the temperature rises ?Can be used in any DIY design?:Requiring a miniature audio amplifier, especially portable and mobile applications operating on battery power ?Package Content?:15PCS x Super Mini Digital Power Amplifiers Board Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!