Sennheiser Pro Audio IE 100 Pro Wireless In-Ear Monitor, Black

Dynamic full-range transducer for high-resolution, powerful monitoring sound · 2 in 1 bundle: Bluetooth module for wireless connection to mobile devices, PCs or tablets, with a built-in microphone for calls or standard 3.5 mm jack-plug cable · Excellent shielding through optimized earpiece shape and flexible silicone and foam attachments · Reduces acoustic stress factors through natural and distortion-free reproduction · 10 hours of continuous use with rechargeable battery