The Ahuja BTA-550 is a portable 30-Watt public address trolley amplifier system featuring a built-in wireless microphone receiver, digital media playback with Bluetooth, and flexible tri-power operation for mobile speech and background sound reinforcement.

• Brand: Ahuja
• Model: BTA-550
• Power Output: 30W Max.
• Speaker Complement: 1 x 8-inch (20.32 cm) Full Range Dual Cone Speaker and 1 x 1.85-inch (4.7 cm) High-Frequency Tweeter
• Input Channels: 2 x Wired Mic (4mV / 4.7kΩ), 1 x Aux / Guitar (100mV / 47kΩ), 1 x Built-in Wireless Microphone Channel
• Microphone Priority: Selectable auto-priority on Mic-1 and Wireless Mic over auxiliary audio
• Digital Media Player: Integrated MP3 player supporting USB, TF/MMC card playback, Bluetooth audio streaming, direct voice recording, and IR remote control
• Tone & Effects: Built-in Digital Echo effect with active Bass (±5dB at 100Hz) and Treble (±5dB at 10kHz) equalisation controls
• Wireless Transmitter: VHF/UHF quartz-controlled fixed frequency receiver; RF output 15mW (Max.), operating range >20m line of sight; runs on 2 x 1.5V AA cells
• Power Requirements: AC 220V–240V 50/60Hz mains, external 12V DC car battery input, or built-in 11.1V 2200mAh rechargeable Li-ion battery
• Protection & Indicators: AC 1A fuse protection, auto deep-discharge battery cut-off, and LED status indicators for low battery, charging, and amplifier clip
• Enclosure & Mobility: Molded plastic cabinet equipped with integrated trolley wheels and retractable telescopic pulling handle