| Product Type | UHF Wireless Beltpack Transmitter |
| Channels | 2 |
| Frequency Band | UHF Band B3 |
| Form Factor | Portable, Beltpack |
| Power Source | Battery |
| Battery Type | AA Alkaline (x6) |
| Battery Installed Quantity | 6 |
| Headset Type | 4F Headset (included) |
| Typical Battery Life | Up to 10 hours |
BOSCH TR-80N B3 R4 US UHF Beltpack, 2CH, Band B3, 4F Headset

Key Benefits
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- Ideal for government and federally funded projects due to TAA compliance and US manufacturing origin
- Extended field operation supported by ability to install 6 batteries, reducing downtime during usage
- Compact and wearable design enhances mobility for users in live events or broadcast production environments
Product Overview
The BOSCH TR-80N B3 R4 US UHF Beltpack is a 2-channel communication device operating in Band B3, ideally suited for professional portable audio use. With a compact size (3.75" x 1.65" x 5.05") and ability to support 6 installed batteries, it ensures mobility and long operation. The included 4F headset boosts clarity in noisy conditions. TAA-compliant and made in the United States, it is suitable for government or enterprise-level implementations requiring reliable communication in the field.
Specifications
Product Overview
Wireless Features
| RF Range | 470 to 530 MHz (Band B3) |
| Modulation Type | FM (Frequency Modulation) |
| RF Output Power | 50 mW |
| Transmission Type | UHF Wireless |
| Channel Spacing | 250 kHz |
| Tuning Steps | 25 kHz |
| Number of Selectable Frequencies | Up to 2400 |
Compliance & Origin
| Country of Origin | United States |
| TAA Compliant | Yes |
| Certifications | FCC Part 74, IC, CE |
| RoHS Compliant | Yes |
| WEEE Compliance | Yes |
Advanced Security Features
| Encryption | No encryption supported (analog system) |
| Tamper Detection | No |
| Authentication Methods | Not applicable for analog RF |
Interfaces
| Headset Connector | 4-pin Female XLR |
| Antenna Connector | Fixed Antenna |
| Control Interface | 2-Channel Selector Switch, Gain Control, On/Off Power Switch |
Physical & Environmental
| Width | 3.75 in |
| Height | 5.05 in |
| Depth | 1.65 in |
| Weight | Approximately 0.9 lb (without batteries) |
| Operating Temperature | -4°F to 131°F (-20°C to 55°C) |
| Storage Temperature | -40°F to 185°F (-40°C to 85°C) |
| Operating Humidity | 0 to 95% RH (non-condensing) |
| Housing Material | Impact-resistant Polycarbonate |
| Color | Black |
Cloud Management & Licensing
| Remote Management | No |
| Licensing Requirements | Streamlined licensing for TV-band wireless under FCC Part 74 |