= PROFESSIONAL HEADSET丨EF-AI-SERIES =
Dynamic balance towards noise reduction and recreation of ambient sound without delay. Able to link with different audio devices through 3.5mm AUX connection cable, including mobile phone.
/EF-AI/
Active and non-cut-off noise cancelling headset to provide protection against hazardous and nuisance noise, while allowing environmental sounds to be reproduced by electronic circuit.
«Main Features«
- IP67 -
- 6 levels of sound amplification -
- removable neckband, easy mode switching between headband and helmet mounting modes -
«Specification«
| Removable Neckband | √ | Voice Input Microphone |
3.55 Aux |
|---|---|---|---|
| Weight (excl. batteries, ±5%) | 270g | Active Noise Cancellation | √ |
| Splash & Waterproof | IP67 | Noise Cut-off | × |
| Batteries | 3A x 2 pcs | Amplification of Weak Signals | √ |
| Battery Life | 200 hours | 360°C Holographic Sound Reconstruction | √ |
| Automatic Shut-off | 2 hours after no operation | Stereo Sound | √ |
| Low Battery Warning | √ | Sound Level Limitation | 82 dB |
| Memory of Volume | √ | NRR | 19 dB |
| Working Temperature | - 30 ± 2 ℃ ～ 60 ± 2 ℃ | SNR |
24 dB H=28 dB, M=21 dB, L=16 dB |
| Relative Humidity | 90%～95% (40 ℃) | Production Standard |
EN 352-1, EN 352-4, EN 352-6 ANSI S3.19-1974 (Meets CSA Class B) |
| Static Electricity | GB / T 17626.2 3L | Optional Gel Ear Pad | √ |
| Audio Input | 3.5mm Aux | Optional Wireless PTT | × |
«Color«
Black, OD Green
