How do you get the battery compartment open? I pressed the clip at the end but nothing happens.

Dear Customer, You can see that there is a notch on the cover on the back of the electronic whistle. From here, use your fingers to push the cover of the battery. I hope it can help you. Best, UNIWA Customer Service Team

Does this whistle have a tendency to stop working like the Windsor whistle?

I've never had any issues with my whistle to stop working. It's always working when I turn it on. Has a good, loud sound. Use mine all the time for soccer games.

Is this whistle sound button sensitive?

Dear Cutomer, Please be assured that the electronic whistle has a switch button, if you stop using it, you can choose off. Best, UNIWA Customer Service Team

ASIN	B08K8WKRTY
Batteries	4 CR2 batteries required. (included)
Batteries Included?	Yes
Best Sellers Rank	#8,789 in Sporting Goods ( See Top 100 in Sporting Goods ) #24 in Coach & Referee Whistles
Brand	UNIWA
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (2,655)
Date First Available	15 October 2020
League	nba
Manufacturer	UNIWA
Material Type	ABS
Package Dimensions	16.41 x 4.19 x 4.19 cm; 9.07 g
Size	S

UNIWA Electronic Whistle, Battery Operated Whistle Adjustable 3 Different Loud Whistle Sounds with Lanyard Handheld Electronic Whistles for Referees Volleyball Coaches Teacher, Soccer Sports Whistle

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