1、Fashionable, small and xompact, easy to carry. 2、No need external power supply, plug and play, easy to use. 3、Through the audio effect processor, car sound quality, sound effects, etc. can be upgrade to (HiFi) standards, bringing you high-quality lossless music. 4、Connecting with a TV, the audio amplifier allows you to enjoy the 2.0 home theater effect . 5、Suitable for mobile phones, car audio, computer, TV, CD / DVD, TV. Description: This product is used to optimize the sound quality of your cellphones, tablets, laptops and other devices. The music sound from your devices will be upgraded to HiFi standards. Mini design of the body allows you to take it to anywhere you want without feeling heavy. With this mini audio amplifier, you can enjoy an lossless music world! Features: 1. Fashionable, small and compact, easy to carry. 2. No need external power supply, plug and play, easy to use. 3. Through the audio effect processor, car sound quality, sound effects, etc. can be upgrade to (HiFi) standards, bringing you high-quality lossless music. 4. Connecting with a TV, the audio amplifier allows you to enjoy the 2.0 home theater effect 5. Suitable for mobile phones, car audio, computer, TV, CD / DVD, TV. Specifications: Processing frequency: 30HZ ~ 30kHZ Processing bandwidth: 30KHz Power gain: 6dB Audio channel: two-channel Audio quality: (HiFi) standard Input impedance: 8 ohms to 32 ohms Output impedance: 47K Input level: 0.01 ~ 0.5V (ppv) Output level: 2.5V (max) Working mode: voltage conversion type Signal interface: input: 3.5mm (stereo) interface, output: 3.5mm (stereo) interface Overall dimensions: 78 x 22 x 22mm / 3.07 * 0.87 * 0.87inch Amplifier Color: Black Package weight: About 145g Package List: 1 x Audio Amplifier 2 x 3.5mm to 3.5mm Audio cable (120mm) 1 x 3.5mm to RCA Cable (103mm)