Thank you for viewing! ☆＾＾☆ ❤️ Price negotiation → Highly welcome ⭐ First come, first served Available for individual sale from 2 items. If you wish to purchase only one item, please purchase it from the separate listing for a single item. 【Product Description】 3.5mm Plug Guide Lecture Speech Headset Microphone, Head-Mounted Headwear Microphone, Voice Amplifier, Lightweight, Overhead Type for Teachers Features: Suitable for lectures, instruction, speeches, etc. 3.5mm plug. Clear voice recording. Mini size, lightweight and portable. Flexible microphone, adjust to the ideal angle. Durable wire body with nylon braid. Specifications: Microphone size: 6x5mm Sensitivity: -52dB+3dB Directivity: Omnidirectional Impedance: ≤2.2kΩ Frequency range: 100Hz～16KHz SNR: >60dB Wire length: Approximately 1 meter / 3.28 feet Contents: 1 lecture headset with microphone ×5 packages ❤️ I also have many other wonderful products for sale♡ ↓ Further discounts available for bulk purchases＾＾↓ #ShakesShop C153.154155156157