Tip: To have enough output power if the audio input is sufficient and the supply voltage/current is sufficient.The power supply voltage is higher and the relative power will be larger.The speakers with different impedances will have different output power.In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound power. Please pay attention!Product Name: MINI 2 x 100W Bluetooth 5.0 Power Amplifier ModuleProduct Model: -1002MChip Model: Domestic Amplifier ChipAudio Input: Bluetooth+AUX+USB Flash Disk+Computer USB(plug and play)Power Supply: DC5-24V(High Power Recommended High Voltage)Adapter Speaker: 20-200W; 4-8Channels: Left And Right Stereo (Stereo)Bluetooth Version: 5.0( Greater than 15 Meters Without Occlusion)Bluetooth Name: Wuzhi AudioProtection Mechanism: Overheat, Overcurrent, Short Circuit ProtectionPower Supply Voltage:12V-----8/20W+20W, 4/40W+40W15V-----8/35W+35W, 4/60W+60W19V-----8/55W+55W, 4/80W+80W24V-----8/70W+70W, 4/100W+100WCompatible Audio & Video Equipment Style: SpeakersCompatible Audio & Video Equipment Style: AmplifierCompatible Audio & Video Equipment Style: playercolour:BlackMaterial:plasticsize: 60 x 60 x 29mmPackage Contents:1 x ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.