48W Wireless Bluetooth Voice Amplifier with Remote Control Supports USBTF Card Playback 1. High-fidelity Bluetooth amplifier, 1000 meters remote control 2. Supports Bluetooth connection and can also be used as a Bluetooth speaker 3. With USBTF card slot, you can directly insert a U diskTF card to play songs, and supports a variety of mainstream audio formats 4. Using a 3.58-inch dual voice coil strong magnetic speaker, the sound quality is powerful yet delicate. The sound is loud, can be used over a long distance, and is clear and noise-free. 5. The intelligent noise reduction chip (dedicated for loudspeakers) is used to produce lifelike sounds, restore human voices with high authenticity, and achieve noise reduction effects, allowing you to reduce noise worries. 6. The remote wireless remote control is more sensitive, farther and easier to use, with 360-degree omnidirectional reception without blind spots. 7. Widely used in: square dancing, outdoor performances, promotional activities and other occasions 8. Equipped with a portable camouflage bag, made of thickened fabric, waterproof and wear-resistant 9. Equipped with high-definition LCD display to view working conditions in real time Parameters: 1. Power: 48W 2. Frequency response: 80Hz-12KHz 3. Sensitive impedance: 4 ohms 4. Speaker: 3.5 inches 5. Battery: 1800mA.7.4V 6. Working hours: 10-20 hours 7. Charging time: 3-5 hours 8. Product size: 98 x 133 x 50mm 9. Remote control power supply mode: AA battery (battery not included)