DC 3V-8V 10W Amplifier High Sound Isolation Dual Chip Control Support Lithium Battery Power SupplyFeature:1. Use two chips to independently control the left and right channels、 sound isolation is high.2. As pure Class D amplifier has high requirement for power supply、 this amplifier use 1000UF capacitor filter、 and the elimination of the exchange voice makes the sound     quality purer.3. When the supply voltage is 8V、 it can apply 10W + 10W output power to the 4!#!amp!*!Omega; load、 makes the sound quality much better.4. With anti-reverse protection、 reverse polarity power input will not burn IC.5. With LED indicator、 convenient to observe the power status、 LED lights indicate amplifier's power supply is fine.6. With 3.5MM stereo audio input interface、 convenient for audio input.Parameter:1. Power: 10W (pure Class D)2. Voltage: DC 3V - 8V (can be supplied with one or two lithium battery、  when the supply voltagte is 3V-5V、  amplifier is on low voltage working state、 and the power will reduce.3. Recommended Speaker: 4 ohm for 5W-8W; 8-12 ohm for 10W-130W (can only use 8 ohm speaker when over 8W、 8 ohm speaker is recommended)Note:1. Can not use computer USB to supply power2. The power supply voltage can not exceed 8V3. The 4 cables of the left and right speakers are completely independent、 common connection is not allowedPackage included:1 x Module