Meterk Electronic Whistle Handheld Electric Whistle with Lanyard SOS Light Flashlight for Coaches Referees P.E. Teacher Features: The electronic whistle can mouth , and is very suitable for referee coaches, P.E. teachers, navy, camping, sports competitions, traffic guides, training, emergencies. There are 3 tones and 3 levels to meet different needs. High , can provide up to 120-150dB sound power. It is easy to attract attention. At the same time, compared with traditional whistles, it can also make a louder, stronger and consistent voice. One LED light can be used for , or camping. Emergency flashlight can also be used to send SOS light for rescue signal. This electronic whistle is made of high-quality ABS environment-friendly materials, tasteless and healthy. With lanyard, suitable for various indoor and sports. The 6F22 9V dry battery(not included) is used for longer and more durable use. Specifications: Item: Electronic Whistle Material: ABS Battery: 6F22 9V Dry Battery(not Included) Size: 14*4.3*3.3cm Package Size: 16.2*5.6*4.1cm Package Weight: 99g Package List: 1* Electronic Whistle The electronic whistle can mouth , and is very suitable for referee coaches, P.E. teachers, navy, camping, sports competitions, traffic guides, training, emergencies. There are 3 tones and 3 levels to meet different needs. High , can provide up to 120-150dB sound power. It is easy to attract attention. At the same time, compared with traditional whistles, it can also make a louder, stronger and consistent voice. One LED light can be used for , or camping. Emergency flashlight can also be used to send SOS light for rescue signal. This electronic whistle is made of high-quality ABS environment-friendly materials, tasteless and healthy. With lanyard, suitable for various indoor and sports. The 6F22 9V dry battery(not included) is used for longer and more durable use.