Easy blowing, High tone dog whistle, fitted with solid, waterproof pearl, to give a trill for those who want a distinctive and different sound. With a frequency that fluctuates by 750 Hertz. 210 Small ultra high pitch whistle has a natural cork ball which produces the familiar 'trilling' roll of the pea whistle. 210.5 Same as the 210 but with out the cork ball, produces a single extremely high frequency.
Easy blowing, High tone dog whistle, fitted with solid, waterproof pearl, to give a trill for those who want a distinctive and different sound. With a frequency that fluctuates by 750 Hertz. 210 Small ultra high pitch whistle has a natural cork ball which produces the familiar 'trilling' roll of the pea whistle. 210.5 Same as the 210 but with out the cork ball, produces a single extremely high frequency.
This whistle gets as close as you can get to the ease of blowing and sound control of an Acme Thunderer - but for those who prefer a whistle without a pea. Blowrate: Easy Effort Blowsound: Very High Loudness Blowtone: High Frequency Dimensions: 5(L) x 2.3(W) x 2.2(H) cms
구경: 90mm 초점거리: 900 분해능: 1.3초 집광력: 157배 적정최고배율: 225배 접안부: 31.7mm 접안렌즈: MA9mm,MA25mm 마운트: 경위대 마운트 삼각대: 알루미늄삼각대 파인더: Red Dot Finder 사이즈: 970x850x270 총무게: 약 10Kg * 망원경 가방(이동형케이스) 사은품 제공
유효구경 : 80mm 초점길이 : 800mm 초점비율 : F/10 파 인 더 : 5x24 접안렌즈 : K9(88.9배), K20(40배) 마 운 트 : 적도의식 마운트 삼 각 대 : 알루미늄 - 초보(입문자)를 위한 800mm 굴절 적도의식 망원경 - 5x24 파인더(탐색경) 제공 - K9(88.9배), K20(40배) 접안렌즈 2매 제공