SHIDU S516 UHF 25W Wireless Voice Amplifier (30W, 2×2000mAh)

Output Power: 30W | UHF Wireless | Battery Capacity: 2×2000mAh | Usage Time: 10–12 Hours | Charging Time: 3–5 Hours | Signal to Noise Ratio: ≥80dB | Input: 9V 650mA | Frequency Response: 90Hz–18KHz | Product Size: 123×99×48mm | Bare Weight: 282g | Audio Input: AUX | Features: Amplification, MP3 Player, Computer Audio, Power Memory, 30W High Power, Support Remote Control