Product Description
About this item: VK-B3 walkie talkie earphone
| 1.Quick disconnection acoustic tube |
| 2.Medium-duty Integrated PTT and lapel microphone with durable metal clip on its back. |
| 3.All have Kevlar reinforced cable all have Kevlar reinforced cable assemblies and over molded strain assemblies and over molded strain relief. |
| 4.Clear sound quality |
1. Speaker Specification
Type | Transducer Moving coil dynamic speaker |
Impedance | 200 Ω±15% @1KHZ |
Sensitivity | 111±3dB @1KHZ At 950mV 150Ω on a Coupler |
Resonance freq | (F0) 400HZ±20% |
Frequency respond | 100~5KHz |
Rated input power | 10mW |
Maximum input power | 300mW |
2. Microphone Specification
Sensitivity Range | -38 ± 3dB RL=2.2K Ω Vs=3.0V(DC) 1KHz 0dB=1V/Pa |
Impedance Max | 2.2KΩ 1kHz (RL=2.2KΩ) |
Frequency | 50-1600Hz |
Current Consumption Max | 0.5uA RL=2.2KΩ Vs=3.0V(DC) |
Operation Voltage Range | 1.0V-10V (DC) |
Max Sound pressure Level | 115dB S.P.L |