ArticleNo/ P/N: HTS230 3M ™ PELTOR ™ Speaker 230 ohms for speech, HTS-230 Genuine Peltor spare part for MT7, MT7N and MT7H79A . Frequency range: 125-8000Hz, Impedance: 230 Ohms, Output level at 0,5V/1kHz: 81dBA. Price request