Connector type: 2.5mm straight 1 pin. Fits two-way radios (audio only), radio speaker mics, remote mics and other audio accessories with 2.5mm earphone jack.
Sensitivity:84dB, Frequency response:20-20KHz, Speaker size:13mm, 0.2W, Output impedance: 32 ohms.
With coiled PU cable for retractable use. Wrap the coiled part behind the ear to make communication more covert.
It can be used separately or together with PTT microphone speaker. Works with parts of Icom Yaesu two way radios.
Package Includes: one 2.5mm Receiver/Listen Only Surveillance Headset Earpiece, One Pair Replaceable Open-Ear Medium Earmold Inserts (Left and Right Ear),One Mushroom Earbud Ear Tip