Suggested Retail: $107.97. ResponseBridge Bluetooth 5.0 Voice Amplifier with Wireless Mic Headset Waterproof Personal Microphone Wireless Voice Amplifier 20W Loudly Portable Megaphone PA System for Teachers Safety Drills Outdoors Indoors M801 - The ResponseBridge M801 is a 20W all-in-one portable voice amplifier with wireless mic headset. It supports TF(Micro SD) card/USB Disk/3.5mm AUX audio input/Record/one-click mute. It is waterproof meeting IPX6 standards, suitable for outdoor and indoor use. It is built with the latest Bluetooth 5.0 chip for faster and more stable connections. The amplifier has a superb battery life with 15 hours of work time after 3 hours of full charge. The microphone will work for 6 hours after 1 hour of full charge. Brand: ResponseBridge Model: M801 -- LOT STICKER: TCE-BOX-BOXTCED0428-ITEM-19d54e5f___LPNPMBT0995859 Bluetooth 5.0 Voice Amplifier with Wireless Mic Headset, Waterproof Personal Microphone Wireless Voice Amplifier, 20W Loudly Portable Megaphone PA System for Teachers, Safety Drills, Outdoors Indoors -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.