Kobra Professional Security Headset Earpiece for iPhone or Android

Fits two-way radios (audio only), radio speaker mics, remote mics, MP3 players, and other audio accessories with 3.5mm earphone jack.
Output level: 72dB, Rated input power: 0.1W, Maximum input power: 0.2W, Output impedance: 32 ohms.
Polyurethane jacketed.
Reinforced earphone clip provides cable retention and eliminates strain on earphone.
Heavy Duty Material. Superb Audio Quality. Rugged Design.
Ideal for high noise level environments and discrete listening.
100% compatible with any 3MM jack.