🔧 Key Features of the Eartec HUB8D

: Enables simultaneous two-way, hands-free communication for up to 8 users.​

: A compact, belt-worn or stationary base that supports up to 8 wireless headsets and includes a dual-pin jack for an optional wired headset, expanding capacity to 9 users.

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

: Link two HUBs via an interface cable to double the capacity, supporting up to 16 full-duplex users. ​

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

: Self-contained wireless headsets with built-in transceivers, eliminating the need for belt packs. Features a 270° swivel boom mic that auto-mutes when in the up position. ​

: Dual power capability with a rechargeable Lithium Polymer battery and AC wall plug (both included). The HUB battery can be charged externally, is field replaceable, and also charges when installed in the HUB during operation under wall current. ​

: Includes an 8-port charger for simultaneous charging of all batteries.

: Comes with a waterproof nylon soft-side case with padded compartments for safe storage and transport. ​

: 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.

8 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: 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 144 oz

System Dimensions: 18” x 10” x 7”

✅ 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