Wirel Etooth 5.1 Headset with Noise Reduction, Lightweight, HD Ce IPX7 Waterproof, and IPX7 Waterproof, for Business Use (YYK-525 Simple Version)

E-coil: Wirel hae earpieces feature a large 14mm e-coil, improving bass microphone performance and allowing you to hear more. Auto PA: Set the headset to full PA and then automatically switch to PA mode when you take it out. Lightweight and secure, you don't have to worry about the headset falling off. E-coil for HD calls: Wirel hae earphones feature a large 14mm e-coil, improving bass microphone performance and allowing you to hear more. Auto PA: Set the headset to full PA and then automatically switch to PA mode when you take it out. Lightweight and secure, you don't have to worry about the headset falling off. Rotatable earbuds: The earbuds on the earbuds can be rotated 270 degrees, allowing you to easily switch between left and right ears and adjust to suit different people's preferences.