🔧 Key Features of the Eartec HUB844
Full-Duplex Wireless Communication: Allows up to 8 users to engage in simultaneous, hands-free conversations without push-to-talk buttons.​

UltraLITE Headsets: Includes 4 single-ear and 4 dual-ear self-contained wireless headsets with built-in transceivers, eliminating the need for belt packs.​

HUB Mini Base Station: A compact, portable base that can be belt-worn or placed on a surface, supporting up to 8 wireless headsets.​

Operating Range: Provides a wireless range of up to 300 yards (line of sight, terrain dependent).​

Dual Operating Channels: Built-in circuitry allows for two separate groups of four users to communicate privately; pressing the CH button creates an eight-person conference.​

Expandable System: Supports up to 9 users with an additional wired headset; link two HUBs to accommodate up to 16 users.​

Power Options: Dual power capability with a rechargeable Lithium Polymer battery and AC wall plug (both included).​

Multi-Port Charger: Includes an 8-port charger for simultaneous charging of all batteries.​

Durable Carry Case: Comes with a water-resistant soft-side case with padded compartments for safe storage and transport.​

No FCC License Required: Operates in the DECT 6.0 frequency band (1920–1930 MHz), eliminating the need for FCC licensing.

📦 System Components
HUB Mini Base Station: A portable, belt-worn or stationary base that supports up to 8 wireless headsets.

4 UltraLITE Single-Ear Headsets: Self-contained wireless headsets with built-in transceivers.

4 UltraLITE Dual-Ear Headsets: Self-contained wireless headsets with built-in transceivers.

9 Rechargeable Lithium Batteries: One for each headset and an extra.

8-Port Multi-Charger: Allows simultaneous charging of all batteries.

Soft-Side Carry Case: Water-resistant with padded compartments for safe storage and transport.

📡 Communication & Range
Full Duplex Operation: Enables simultaneous two-way communication.

Operating Range: Up to 300 yards (line of sight, terrain dependent).

Frequency Band: DECT 6.0 (1920–1930 MHz, USA).

Channels: Two separate channels with a conference mode to link all users.

Expandable: Supports up to 9 users with an additional wired headset; link two HUBs for up to 16 users.

🔋 Power & Battery
Headset Battery: Rechargeable Lithium 3.7 V / 800 mAh / 3.0 Wh.

Operating Time: Approximately 6 hours per charge.

Charge Time: Around 3 hours.

Dual Power Options for HUB: Rechargeable battery or AC wall plug (both included).

🎧 Headset Features
Design: Single-ear and dual-ear, self-contained with no external wires or belt packs.

Microphone Boom: 270° swivel; auto-mutes when in the up position.

Comfort: Deluxe padding suitable for extended use.

📐 Physical Specifications
HUB Dimensions: 5.5” W x 1.5” D x 3.75” H

HUB Weight: 4 oz

System Weight: Approximately 9 lbs

✅ Additional Information
Modulation Type: GFSK

Transmission Speed: 1.152 Mbps (Baud Rate)

Duplexing: Time Division Duplex (TDD)

Speech Encoding: ADPCM / 32bit/s

RF Accessing: Time Division Multiple Access (TDMA)

Operating Temperature: 0°C to 40°C

Storage Temperature: -10°C to 50°C

Regulatory: No FCC license required