Description
The radio earphone is only work with Ailunce HD1 DMR Digital Amateur Radio, Retevis RT29 RT87 RT648 RT647 Walkie TalkiesTechnical specifications: Microphone specification: Impedance:2.2k Ω Sensitivity:-40 ± 3dB at1Khz (0Db = 1V / Pa) Operating voltage:1.5-10VDCHorn specification: Diameter:Φ 15mm * 5mm Impedance:32 ohms ± 15% at1 kHz Sound pressure level:95 ± 3dB Rated power:5mW Max. Output power:10mWIn the package: 1 x Ailunce HD1 G-Shape Headset Compatible with Ailunce HD1 DMR Digital Amateur Radio Retevis RT29 RT87 RT648 RT647 Walkie Talkies




