Voice Amplifier, 30W Waterproof Amplifier For Teacher Headset Wireless/Wired Microphone Speaker As 5000mAh Power Bank(Wired)

3 IN 1 VOICE AMPLIFIER & V50 SPEAKER E POWER BANK This is not only a high power (30W ) with 4-inch trumpet nice voice amplifier which can project your voice clearly and loudly, but also can be used as a speaker and a power bank for emerncy charging. UPGRADED WATERPROOF IPX6 DESIGN PERFECTLY FOR INDOOR AND OUTDOOR USE This voice amplifier is designed with the silicone cases and interface to ensure waterproof, shockproof, dustproof, splash-proof, rainproof, sand-proof. LONG WORKING TIME & BATTERY LEVEL DISPLAY Recharable voice apeaker builtin 2pcs*2500mAh, 7.4v big lithium battery which could last for up to 12 hours playtime after fully char. LIGHTWEIGHT AND EASY TO CARRY AROUND The portable speaker is small in size(15.8*12.2*7.3cm) and lightweight(0.75kg), you can use the back detachable clip to fix it on your belt or pocket, or you can also tie it around your waist or hang it on your neck with the help of the waistband, very easy to carry. Supports TWS,FM, recording, loop playback, Aux input, card and U disk.