18W Portable Wireless Voice Amplifier for Teachers — UHF Microphone, Waterproof Speaker, 4400mAh Power Bank, High Sound

Compact, teacher-friendly waterproof megaphone combining a UHF wireless microphone with a powerful speaker and built-in power bank. The dual voice coil speaker produces a maximum peak output up to 18W for clear, punchy sound in classrooms or outdoor settings. A 4.2 Chip ensures faster, more stable signal transmission for reliable wireless performance. On-board power display shows the present electricity percent so you always know remaining battery life. Includes e Charr / Power Bank function with 4400mAh capacity to recharge devices on the go.