Pomya Portable Mini HiFi Stereo Headphone Amplifier 3-5mm AUX Digital Stereo Earphone Audio Amplifier AMP with Cable for Mobile Phone PC Black

Description: Are you still worried about this? Every time you listen to a song on your cell phone, the sound is stiff, dry and cold. Low frequency reduction is insufficient, listening is weak, audio output has digital flavor bias. From now on, you won't be troubled by these problems any more. This sound amplifier can help you solve all the sound problems. You deserve a try. Specifications: Type: Cell Phone Amplifier Material: Aluminium Alloy Color: Black Output Power: Maximum. 300 mw * 2/16 ? Frequency Response: 2 - 27 KHz Signal-to-noise Ratio: 95 DB Dynamic Range: 90 DB Separation: 70 DB Distortion: ? 0.006% Input Impedance: 32? Output Impedance: ? 200? Working Temperature: - 40 °C - 60 °C Storage Temperature: - 40 °C - 85 °C Storage Humidity: 10% - 90% Battery: Built-in lithium battery, 200mah (charged by Micro USB cable) Battery Life: 30 hours (approximately) Size: Approx. 68 * 25 * 10 mm / 2.7 * 1 * 0.4 inch (without wires) Battery protection: Yes Overcurrent protection: Yes Overpressure protection: Yes Short circuit protection: Yes Package Weight: 53g Package Include: 1 x HiFi Amplifier (excluding charging cable)