Voice Amplifier,15W Rechargeable Portable Microphone for Teachers,Lightweight Personal Microphone with Speaker Wired Headset Supports Bluetooth,Recording,FM Radio,TF Card/AUX Black music_update_2021 5mm with rubber 7/16" 11mm

5mm with rubber 7/16" 11mm without rubber 0

the unit has a Stereo RCA jacks and a headphone /line output

Cable length: 2

and 78 RPM

Spend a few minutes to select the most appropriate frequency before using this system

Voice Amplifier,15W Rechargeable Portable Microphone for Teachers,Lightweight Personal Microphone with Speaker Wired Headset Supports Bluetooth,Recording,FM Radio,TF Card/AUX Black music_update_2021 5mm with rubber 7/16" 11mmTeacher must haves: WB002 Bluetooth voice amplifier can be a thoughtful and practical gift for a teacher who frequently speaks in front of large groups or classrooms. 15W powerful output could cover 10000 sq. ft,kindly recommend use this portable headset microphone speaker system indoors like classroom,it's plenty loud for a class of around 50 middle schoolers to hear you. Easy Pairing and Operation: Wireless voice ampliifer unit is very easy to pair