Xflyee [4 Pack Box] Electronic Whistles, Loudest Electric Whistles 3 Tones High Volume Whistle Hand Held for Coaches Referees Training Whistle Bulk, Outdoor Hiking Emergency Rescue Whistle Gifts

TIRED OF YELLING AND WHISTLING ? - Xflyee electric whistle is your best choice. Easy to get attention, loud, consistent sound every time. Electric whistle for teacher helps your voice at recess without blowing but also send louder, strong and consistent sound compared with traditional whistles.

HIGH VOLUME ELECTRONIC WHISTLE - Electronic whistle 3 different tones of personalized whistle for your choice, you can choose the best sound level to meet your needs without causing damage to your hearing. It is suitable for all sporting events, as well as for alerting in emergency situations where there is a threat to personnel.

HIGH QUALITY - The shell is made of high quality ABS environmental material, non-toxic, tasteless and healthy while having stronger crack and drop resistance. In addition, each handheld whistle for teachers comes with 4 Cr2032 lithium batteries packed separately to ensure that you can use it for a longer time in the outdoors. If the sound becomes abnormal, please replace the batteries.

PORTABLE DESIGN - The handheld whistle has perfect dimensions: 5.35in x 1.54in and weighs about 80g. It also comes with a long 6.54in lanyard and a dust storage bag, so you can easily strap it to your backpack, belt or shoulder strap for quick and easy access in case of emergency.

AFFORDABLE 4-PACK Gift BOX - In order to meet the large demand for electronic whistles from referees, coaches and teachers, we have newly launched a gift box version containing 4 colors of electronic whistles in black, blue, red and orange. And comes with 4 high-quality stainless steel whistles, 4 dust bags, 16 button batteries, a one-time purchase can save you the cost of purchase.