Artextreme SD03 HIFI Protable Headphone Mobile Phone Amplifier Audio Receiver

Features:Small and light weight, easy to carryBuilt-in 200mah rechargeable battery, 10 minutes charging for 22 hours usingCompatible for Mobile phones, outdoor speakers and car speakersUsage: Connect the phone, improve sound quality, increase power, drive better headphones Connect PC3.5 interface, improve sound quality, increase music power Connect the home theater, as a pre-amplifier, improve sound quality, enhance bass Connect automotive AUX interface, reduce noise, improve sound quality Specifications: Output power: Max 300mwx2/160 Frequency: 2-27Khz Signal to ratio: 95db Dynamic range: 90db Resolution: 70db Distortion: 0.006% input resistance: 32 ohm Output resistance: ≤200ohm Power supply: 200mah (work 22 hours) FIN=1KHZ Rout=32 ohm Pout=60mw Vcc=4.2V Package Included:1 x Artextreme SD03 Amplifier1 x 3.5MM Audio Cable 1 x USB Cable