Molten RA0020 Loud Electronic Whistle battery (sold separately)

【💥 日本直送 - 黑色版】Molten  RA0020 127dB 大音量 電子哨子 Electronic Whistle Electronic Sports Whistle  ( 不連電池 )

能聽到遠處的大音量型 "顫音"&"蜂鳴音"2種音色。 (附帶音色切換開關功能)

商品概述1:帶繩子(附帶2個調節環)・中國製造・塑膠・黑色・主體重量(約)80g

商品概述2:長度12×頂端部分直徑4.6cm・音量約127dB/10cm・鹼性乾電池9V型1節 (另售)

You can hear it from a long distance. You can switch between 2 tones: "trick" and "buzzer". (Comes with a tonal switch function)

Product Overview 1: Rope included with 2 adjustable rings; Made in China; Plastic; Black color; Product weight: Approx. 2.8 oz (80 g)

Product Overview 2: Length 4.7 inches (12 cm) x Tip Diameter 1.8 inches (4.6 cm), Volume 127 dB/3.9 inches (10 cm), Uses 1 9V alkaline battery (sold separately)

Web Viewing: We have opened a mobile site that allows you to hear whistle sounds. You can read the attached images with your mobile barcode reader to listen to sound on your phone

Electronic whistle with switchable sounds

Loud whistle for distant players

Can be switched between two tones of triggering sounds (one and the alternating up or down) and buzzer sound.

Large capacity type that can be used for approximately 5 months.

Can be used for approximately 5 months with 1 alkaline battery (9 V type).

1 time 2 seconds, 20 times a day.

Specifications

Volume: 105 dB (1 m)

Length:12cm

Diameter: 4.6cm (tip)

Weight: Approx. 2.8 oz (80 g) (excluding batteries).

Accessories: Strap.

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📢哨子聲可能係一個最直接既溝通傳達最快既指令！！

但長期係咁嗌聲帶絕對受損, 如果教練您仲用緊傳統咇咇真係時候轉用呢個