Specification:
Item Type: Whistle
Material: ABS Resin
Size: Approx. 49 x 20 x 13mm / 1.9 x 0.8 x 0.5in
Frequency: 0-4000 Hz
Features:
1Independent sound holes on both sides of the whistle, the sound can be transmitted to both sides of the court. 2Considering that human ears are more sensitive to 10004000Hz audio, so the treble frequency is set to 4000Hz. 3Adjustable nylon lanyard, the lanyard can easily pass through the tail hole, and the length of the lanyard is fixed by double balls. 4Made of ABS resin, whistle is environmentally friendly material, hot and cold temperature resistant, light weight, very portable. 5Widely use, the whistle bulk are great for referees, coaches, teachers, training, survival, emergency, school, sports, give away etc.
Package List:
1 x Whistle
1 x Lanyard
1 x Mouthguard
1 x Storage Box
