Specification Brand : HiLetgo BulletPoint1 : MAX98357 I2S 3W Audio Amplifier Board BulletPoint2 : MAX98357 Class D Filterless Audio AMP Board BulletPoint3 : Plug and Play, 35 different clocks and 128 digital audio formats can be automatically configured with a single power supply. BulletPoint4 : With I2S audio output microcontrollers or development systems, suitable for Raspberry Pi, Arduino and ESP32 etc. BulletPoint5 : Security protection: This amplifier board has over temperature protection, short circuit protection, reverse connection protection, clipping protection, overvoltage and undervoltage protection. These intelligent protections ensure that your device is protected in any situation, so you can enjoy music with peace of mind BulletPoint6 : 【Versatile Headphone and DAC Options】: The TOPPING DX1 offers two gain settings and dual headphone outputs (6.35mm and 3.5mm), making it ideal for desktop amplifier, bluetooth dac amp, or digital to analog converter setups. Its jitter-free performance and fixed volume output make it a versatile choice for any HiFi equipment. Color : Silver CompatibleDevices : Speaker ConnectivityTechnology1 : Bluetooth ConnectivityTechnology2 : USB ControllerType : Push Button ExternallyAssignedProductIdentifier : 6977577361220 ExternallyAssignedProductIdentifier1 : 0796926880702 ExternallyAssignedProductIdentifier2 : 796926880702 IncludedComponents : AK-3116 HiFi Digital Amplifier ItemName : HiLetgo 3pcs MAX98357 I2S 3W Audio Amplifier Board DAC Decoder Breakout Module Class D Filterless Audio AMP Board ItemPackageDimensions_Height : 21.1 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 15.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : audio-component-amplifiers Manufacturer : HiLetgo MaximumSupplyVoltage : 5 volts ModelNumber : EP-ZL-502L MountingType : Surface Mount NumberOfBoxes : 1 NumberOfChannels : 2 NumberOfItems : 5 OutputPower : 100 watts PackageTypeName : box PartNumber : 3-01-1755 ProductDescription : Description: This is MAX98357 I2S 3W Audio Amplifier Board, Class D Filterless Audio AMP Board. Plug and Play, with 35 different clocks and 128 digital audio formats can be automatically configured with a single power supply. I has I2S audio output microcontrollers or development systems, suitable for Raspberry Pi, Arduino and ESP32 etc. Pin out instructions: LRC: Frame Clock, left/Right clock for I2S and LJ modes, Sync clock for TDM mode BCLK: Bit clock input DIN: Digital input signal GAIN: Gain and channel selection SD: Shutdown and channel selection. Pull SD_MODE low to place the device in shutdown GND: Power ground VCC: DC 2.5V-5.5V Package Included: 3* MAX98357 Audio Amplifier Modules ProductSiteLaunchDate : 2023-08-07T08:42:24.265Z Size : ZK-502L (50W+50W) SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 52161547 Voltage : 5 volts WarrantyDescription : 1 Year