Features:3.The power supply voltage is DC 5V (do not overvoltage, overvoltage will burn the IC).4.Can be applied to portable applications, such as LCD TVs, speakers.5.Low quiescent current, noise suppression.6.Prevent reverse connection of power input, short circuit and overheating.7.Additional Function: it is available to connect amplifier type to choose different function (MODE: high electricity level is Type D, low electricity level is Type AB. Factory defaults high electricity level); available to add an external shutdown (SD: the chip will be shutdown at low electricity level, factory default high electricity level); Mute can be connected externally (MUTE: low level mute, factory default high level).Specifications:Material: Plastic, MetalColor: BlackPower supply voltage: DC 5V (do not overvoltage, overvoltage will burn the IC)Input method: single-endedOutput power: 5W 2Ω 5V \ 3W 4Ω 5V \ 1.8W 8Ω 5VEfficiency: >90%Total Harmonic Distortion Plus Noise: <10%Brand name: BQLZRSize: 55 x 50 x 32mm/2.17 x 1.97 x 1.26 inch(L x W1 x W2)Hole Spacing: 48 x 25mm/1.89inch x 0.98inchWeight: 53gPackage include:2 x Digital Amplifier Module Replacement for PAM84062 x Manual