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Voice Amplifier Portable Bluetooth 30W 3200mAh Rechargeable PA S
Voice Amplifier Portable Bluetooth 30W 3200mAh Rechargeable PA S
Amplifys your voice and saves your throat. The sound is clear, crisp, no noise and no distortion. The max 30 watts sound can cover about 15000 sq. ft (1400 ã¡), loud enough to cover a big room.
Multiple Output Methods:Not only is it an amplifier but also a portable Bluetooth speaker, you can transfer audio files from any type of Bluetooth-enabled mobile device, USB flash drive, TF card to 33 feet away.
Rechargeable Voice Amplifier:Built-in a large 3200mAh lithium-ion battery, so that the microphone speaker full charge only takes 4-6 hours, but play amplification time up to 18 hours, music playback time up to 8 hours.
Small Size and Light Weight:This portable Bluetooth megaphone is a portable public address system that weighs only 249g and you can take it to multiple locations such as classrooms, bingo calls and outdoors. It's great for small to medium groups speaking to multiple people.
Tips for use:1. Place the microphone directly in front of your mouth for maximum amplification.2. Don't howl: The microphone and speaker need to be positioned at a distance, preferably facing each other. It may also cause feedback if the volume is set too high. Just gradually increase the volume as needed.
For a slightly longer introduction to BEETLES, watch the 7-minute video.
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BEETLES: Infusing outdoor science programs with research-based approaches and tools to improve science teaching and learning.
Our professional learning resources are designed for program leaders to use with field instructors. They provide experiences and rationale about outdoor science instruction designed to inspire instructors to improve their teaching. Our student activities inspire students’ wonder and curiosity about the natural world, support their innate tendencies for exploration and guide them to make explanations based on evidence.
All BEETLES resources embody our five research-based design principles.
People learn Outdoor Science best when they:
ENGAGE DIRECTLY WITH NATURE
Experience Instruction based on how people learn
THINK LIKE A SCIENTIST
PARTICIPATE IN CULTURALLY RELEVANT LEARNING ENVIRONMENTS
LEARN THROUGH DISCUSSIONS
“True dialogue occurs when teachers ask questions to which they do not presume to already know the correct answer.”