H-400
JCK SOLUTIONS™
IP68 Heavy-Duty Noise-Cancelling
Speaker Microphone (RSM)
The H-400 Heavy-Duty Remote Speaker Microphone is designed for demanding professional environments where durability and clear communication are essential. With an IP68-rated housing, dual-side skid-proof design, and microphone noise-cancelling technology, the H-400 provides reliable operation in challenging conditions. A 3.5mm earpiece socket and volume control offer additional flexibility for different communication needs.
Product Features

✔ IP68 Waterproof Protection
✔ 3.5 mm audio jack supports both listening and voice transmission
Heavy-Duty Communication for Demanding Industries
Designed for professionals working in demanding environments, including law enforcement, military, firefighting, construction, and other heavy-duty operations where durability and clear communication are essential.
Product
Engineered for heavy-duty applications, the H-400 combines rugged protection with practical communication controls. Its IP68-rated construction provides high resistance to dust and water, while the skid-proof surfaces help maintain a secure grip when operating with gloves. The microphone noise-cancelling technology suppresses ambient noise to improve voice intelligibility in noisy environments. Users can also adjust the volume directly and connect a compatible earpiece through the 3.5mm socket for flexible audio reception.
Primary Features
- IP68 Dust & Water Protection
- Dual-Side Skid-Proof Design
- Microphone Noise-Cancelling Technology
- 3.5 mm audio jack supports both listening and voice transmission
- Volume Control
- Heavy-Duty Construction
- Designed for Glove Use
Specifications
- Microphone Acoustics
- OMNIDIRECTIONAL
- Dimension : Φ6×5(mm)
- Sensitivity : -40±3db
- Speaker Acoustics
- Speaker Diameter : Φ50 (mm)
- Impedance : 8±15% Ohm
- Output Power : normal 2w / maximum 2.5w
- Output Level : 103±3db
- Frequency Response : 0Hz~20KHz
- Dimensions
- 67.2mm (W) x 128.4mm (H) x 40.3mm (D)
- Weight (Grams) : 200.8g



