Product Type | UHF Wireless Beltpack System |
Application | Portable Audio Communications |
Channels Supported | 2 |
Frequency Band | Band B3 |
Form Factor | Beltpack |
Included Accessories | 4M Headset |
Batteries Required | 6 |
Battery Type | AA-Type (assumed, user-replaceable) |
Power Source | Battery-powered |
Suitable Environments | Live Event Production, Broadcast, Commercial & Government Applications |
BOSCH TR-80N B3 US UHF Beltpack with 4M Headset, 2-Channel, Band B3




Key Benefits

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- Dual-channel UHF design increases communication flexibility in complex audio environments
- Compact size and battery capacity support extended mobility and usage
- TAA compliance ensures compatibility with government procurement standards
Product Overview
The BOSCH TR-80N B3 US is a high-performance UHF wireless beltpack system built for portable audio needs in demanding environments. Featuring two communication channels over Band B3, it offers efficient and interference-resistant audio transmission. Included is a 4M headset, ensuring high-clarity communication—ideal for broadcast production, live event coordination, or other professional environments requiring mobility and reliable communication.
This beltpack is compact—3.75" W × 1.65" D × 5.05" H—and operates with six installed batteries, allowing for extended usage. TAA-compliant and manufactured in the United States, it is suitable for government and commercial applications that demand quality and compliance. Built to Bosch’s high standards, it supports seamless integration into existing portable audio setups.
Specifications
Product Overview
Wireless Features
Wireless Technology | UHF (Ultra High Frequency) |
Frequency Range | 482 – 504 MHz (Band B3 range approx.) |
Wireless Range | Typical operational range up to 1000 ft (line of sight) |
Modulation Type | FM Analog (typical for intercom systems) |
Wireless Audio Transmission | Low-latency full-duplex communication |
Compliance & Origin
Country of Origin | United States |
TAA Compliant | Yes |
Certifications | FCC Part 74, RoHS Compliant |
Advanced Security Features
Encryption | No (Analog UHF system) |
Interference Avoidance | Frequency agile, user-selectable channels |
Interfaces
Headset Connector Type | Proprietary or 4-pin XLR (model specific) |
Audio Channels | 2-channel operation |
Antenna Type | Internal or external antenna (model-specific) |
Headphone Jack | Yes |
Microphone Input | Yes, via Headset |
Physical & Environmental
Width | 3.75 in (95 mm) |
Depth | 1.65 in (42 mm) |
Height | 5.05 in (128 mm) |
Weight | Approx. 14 oz (with batteries; inferred) |
Housing Material | Durable ABS or metal (model-specific) |
Color | Black |
Operating Temperature Range | 0°C to 50°C (32°F to 122°F) |
Storage Temperature Range | -20°C to 70°C (-4°F to 158°F) |
Relative Humidity (operating) | Up to 95% non-condensing |
Cloud Management & Licensing
Remote Management Support | Not applicable |
Cloud Integration | No |
Licensing Requirements | May require FCC license for UHF operation in certain regions |