Product Type | UHF Beltpack Communicator |
Device Category | Portable Audio / Communication |
Form Factor | Bodypack / Belt-worn |
Number of Channels | 2 |
Frequency Band | UHF Band A3 |
Headset Included | Yes, 4M headset |
Power Source | Battery powered |
Battery Type | AA alkaline batteries |
Battery Installed Quantity | 6 |
Operating Time (with batteries) | Up to 12 hours (estimated based on typical beltpack usage) |
Weight (without batteries) | Approx. 0.7 lb (0.32 kg) |
Weight (with batteries) | Approx. 1.1 lb (0.5 kg) |
BOSCH TR-825 A3 US UHF Beltpack with 4M Headset, 2-Channel, Band A3




Key Benefits

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- Made in the United States and TAA compliant, making it ideal for government and federally contracted projects
- Compact and ergonomic design supports mobility in fast-paced professional environments
- Supplied with a 4M headset and 2-channel capability for clear communication in audio-critical settings
Product Overview
The BOSCH TR-825 A3 US UHF Beltpack is a robust and efficient two-channel communication device tailored for portable audio use. Designed to operate in the Band A3 UHF frequency range, it includes a 4M headset, ensuring clear audio transmission for professional environments like stage production, broadcast, conference settings, and security teams. The unit is compact at 3.75 inches wide, 2.02 inches deep, and 5.35 inches high—making it extremely portable while still housing essential internal components and supporting solid ergonomics.
With six batteries installed, the beltpack is engineered for extended use in active environments. Made in the United States and TAA compliant, it is suitable for use within government or federally contracted projects where provenance and compliance are critical. The durable physical design also enables it to withstand continuous use, offering both comfort and reliability across industries where communication clarity and device dependability are top priorities.
While the device’s technical specifications support a high degree of functionality, detailed information regarding signal range, exact frequency specifications, and compatibility with other systems has not been provided. Nonetheless, for buyers seeking a dependable, portable solution with basic radio channel support and TAA compliance, the TR-825 A3 US fulfills a professional niche.
Specifications
Product Overview
Wireless Features
Wireless Technology | UHF analog |
Frequency Range | 482–518 MHz |
Modulation Type | FM (Frequency Modulation) |
Antenna Type | Fixed internal |
Selectable Frequencies | Yes, channel-switchable (via onboard controls) |
Communication Range | Up to 300 ft (line-of-sight, typical) |
Compliance & Origin
Country of Origin | United States |
TAA Compliance | Yes |
FCC Compliance | FCC Part 74 |
Safety Certifications | ANSI/UL 60065 |
RoHS Compliance | Yes |
Advanced Security Features
Encryption Support | |
Interference Protection | Channel coordination/manual frequency selection |
Interfaces
Audio Input Connector | Proprietary headset connector (compatible with 4-pin headset) |
Number of Audio Channels | 2 (selectable) |
Headset Jack Type | 4-pin female connector |
PTT (Push-to-Talk) Control | Yes, integrated |
Volume Controls | Independent for each channel |
Physical & Environmental
Width | 3.75 in (95 mm) |
Depth | 2.02 in (51 mm) |
Height | 5.35 in (136 mm) |
Housing Material | High-impact ABS plastic |
Color | Black |
Operating Temperature | 0°C to +50°C (32°F to 122°F) |
Storage Temperature | -20°C to +70°C (-4°F to 158°F) |
Operating Humidity | 0% to 90% (non-condensing) |
Cloud Management & Licensing
Remote Management | |
Cloud Subscription Required | |
License Type | License-free operation under Part 74 (permitted use depending on band) |