UH-280 Wireless Handheld Microphone
Model UH-280
Overview
The UH-280 is a professional wireless handheld microphone with a dynamic capsule and a color TFT display that shows frequency, band, battery level, gain, and lock status in real time.
Its selectable RF power up to 100 mW and 134 MHz bandwidth allow flexible operation across different environments and regions while minimizing interference.
The dock-charging version with rechargeable batteries is especially well suited to installations where the microphone is used and recharged every day, such as KTV venues, hotels, and multipurpose rooms.
Technical specifications
Type
UHF wireless handheld microphone
Compatible System
UR-280 wireless system and other compatible UR series
Carrier Frequency Range
521.25 MHz – 936.85 MHz (depending on region)
RF Bandwidth
Single channel 134 MHz (depending on region)
Modulation
FM
Oscillation
PLL synthesized
Harmonic Radiation
< 45 dBm below the main carrier
Capsule
Dynamic, designed for voice
Polar Pattern
Unidirectional (designed for vocal use)
RF Output Power
10 mW / 30 mW / 100 mW selectable
Audio Compression
Classic Relacart companding circuit for high dynamic range
Volume Adjustment
-15 to +5 dB in 1 dB steps
Display
1.14" color TFT showing group/frequency, band, battery level, dB value, lock status, and other states
Lock Function
Key lock to prevent accidental changes
Charging
Optional version with rechargeable battery (NiMH or lithium) and contacts for RC-2 wireless dock/charger
Battery
2 × AA (alkaline or NiMH) in standard version
Battery Life
≈ 8 hours with alkaline batteries (typical)
Current Consumption
≈ 170 mA (typical)
Dimensions
Ø55 × 269 mm
Construction
Robust metal body with ergonomic grip and design suited for dock charging
Applications
High-demand KTV, small to medium stages, conferences, education, corporate events, and worship
Key features
- 1.14" color TFT display that clearly shows all main operating parameters.
- Dynamic capsule optimized for speech, delivering natural sound and good ambient-noise rejection.
- Three RF power levels (10 / 30 / 100 mW) to adapt range and stability to each environment.
- Volume adjustment from -15 to +5 dB in 1 dB steps to balance levels between different users.
- Rechargeable battery options and RC-2 dock charging for intensive-use scenarios that require frequent recharging.
- Compatible with the UR-280 true-diversity system, delivering strong RF stability and professional audio quality.
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