🔧 Key Features – Eartec EVXDR
Full-Duplex Wireless Communication
Allows simultaneous talking and listening—ideal for real-time team coordination.

Dual-Ear Design
Over-ear headset with earcups on both sides for clear audio and noise isolation.

Self-Contained with Built-In Transceiver
No belt packs or base stations needed; connects wirelessly to master headset.

270° Swivel Boom Microphone
Adjustable for left or right use; automatically mutes when raised.

Five-Level Volume Control
Easily accessible volume adjustment on the earcup for user convenience.

Long Wireless Range
Communicates clearly up to 1148 feet (350 meters) line of sight.

Expandable System
Supports up to 9 users (1 master + 8 remotes) per system.

Rechargeable Battery
Provides up to 8 hours of talk time; field replaceable for fast swaps.

Comfortable Headband Fit
Secure, adjustable fit suitable for extended wear in active environments.

License-Free Operation
Operates on 2.4 GHz frequency—no FCC license required.

📡 Wireless Technology
Frequency Band: 2.4 GHz (2407–2475 MHz)

Modulation Type: GFSK

Duplex Mode: Time-Division Duplex (TDD)

RF Channel Access Method: Time-Division Multiple Access (TDMA)

Speech Encoding: ADPCM / 16 kb/s

Transmission Speed: 1 Mb/s

Bandwidth: 150 kHz

Channel Spacing: 1 MHz

Encryption: None​

📶 System Capacity & Range
Maximum Users: Up to 9 headsets per system (1 master + 8 remotes)

Operating Range: Up to 1148 feet / 350 meters (line of sight)

Base Station Requirement: Not required; operates via master headset​

🎧 Headset Design
Earpiece Design: Over-Ear (Circumaural)

Wearing Style: Headband

Number of Earpieces: Dual (left and right sides)

Sound Field: Mono

Microphone Boom: 270° swivel; auto-mutes when raised

Controls: Five-level volume control on earcup​

🔋 Power & Battery
Battery Type: Built-in rechargeable Lithium-Ion Polymer (LiPo)

Runtime: Up to 8 hours per charge

Field Replaceable: Yes​

🌡️ Environmental Specifications
Operating Temperature: 32°F to 122°F (0°C to 50°C)

Operating Humidity: 30% to 90%