ZOWEETEKFlexible Wired Microphone with 3.5mm Audio Plug for Voice Amplifier and AUX Audio Device (SDMIC03)

ZOWEETEK Flexible Wired Microphone with 3.5mm Audio Plug for Voice Amplifier and AUX Audio Device (SDMIC03)

ZOWEETEK ZW-Z258 Portable Rechargeable Mini Voice Amplifier for Teachers with Waistband, Portable Speakers Supports MP3 Format Audio for Speech, Class, Training,Tour Guide, Power Amplifiers

ZOWEETEK Original Voice Amplifier for Teachers with 2 Microphones, Wireless Voice Amplifier Microphone Headset, Portable Speaker Megaphone for Classroom, Training, Teaching, Yoga, Meeting, Speech