Excellent noise suppression, in the absence of input audio, the ear against the speaker can not hear any noise, two-channel stereo, 5V power supply that can output 3W + 3W power, can be directly driven by the 4Ω, 8Ω small speakers, output power, energy, good sound quality. Unique Class D digital power board without LC filter, can be used directly with the computer's USB power supply.
Operating voltage: 2.5V-5.5V. note: the power supply voltage should not exceed 5.5V, the power supply positive and negative do not connect the reverse
Speaker with: 4-8 ohms, recommended: 4 ohms
speaker power: 2-8W
Can use computer USB port 5V power supply, or use mobile phone charger USB port 5V power supply, can also use lithium battery power
90% high efficiency, 4Ω load and 5V power supply conditions, can provide 3W (left channel) +3W (right channel) output power. class A, class B and other amplifiers are only in the efficiency of about 30%, class D amplifier in today's green trend is highly respected
Class D amplifier efficiency is very high, not because of the temperature rise affects the sound quality, and do not have to add a heat sink, occupies a small volume
The amplifier board has built-in noise cancellation circuit, no crackling noise when the power supply is on/off
the module has short-circuit over-current protection and over-temperature protection
Package Dimensions: 3.1 x 1.8 x 0.5 inches; 0.81 ounces
Date First Available: August 7, 2020
Manufacturer: Teyleten Robot
ASIN: B0894T514L
