Two pairs of speaker output clips, easy to wire up.Suitable for no more than 6 inches and impedance of 4-8Ω 20W speakers.When using a high-performance audio amplifier chip, the output power is 20 W + 20 W.Aluminum alloy shell to all kinds of electromagnetic interference.Supports the setting of high and low frequencies. Description: This is a mini 2-channel HiFi stereo audio power amplifier for home/car audio, motorcycles, boats, MP3, etc. 20W + 20W output, 12V amplifier With bass, treble controls in small sizes is easy to install and use. Order it and enjoy music. Features: Aluminum alloy shell to all types of electromagnetic interference. When used of a high-performance audio amplifier chip, the output power is 20 W + 20 W. Suitable for an impedance of no more than 6 inches of 4-8Ω 20W speakers. Two pairs of speaker output clips, easy to wire. Supports the setting of high low frequencies. Specifications: Output power: 20 W + 20 W Input power: 12 V DC Input sensitivity: 200 mV Input impedance: 47 kOhm Speaker impedance: 4 - 8 Ohm Frequency response: 20 Hz to 20 kHz Minimum. THD: 100 dB Color: red Size: 125 * 70 * 40 mm/4.9 * 2.8 * 1.6 inches Material: aluminum alloy Package weight: 228 g Package list: 1 x power amplifier 1 x user manual