Versatile Headset Microphone for Amplifiers: Compatible with all VoiceBooster and Aker Voice Amplifiers, plus other brands, this headset microphone with 3.5mm plug is perfect for a variety of professional uses. | Adjustable Boom & Feedback Control: Features a 39-inch cable and adjustable boom/tip for optimal positioning. Ensure the white line on the microphone tip faces your mouth for highly directional sound and feedback control. | Clear Sound for Diverse Applications: Ideal for teachers, tour guides, coaches, and presenters, this headset offers 53 dBV/A ± 3 dB sensitivity, providing crisp, clear amplification for classrooms and outdoor events. | Lightweight & Comfortable Design: At just 2 ounces, this headset ensures long-lasting comfort, making it perfect for costume use, MP3 players, electronic sound effects, and extended speaking engagements. | Compatible with Multiple Amplifiers: Works seamlessly with VoiceBooster models MR1508, MR1506, MR2506, MR1505, MR2200, MR1700, MRAK38, and others, offering flexibility for both professional and recreational use.