Frequency: 8.2MHz Dimension: 48mmx42mm (1.89"x1.65")，52mmx43mm (2.05"x1.69")Detection: 1.00m-1.20m (3.28’-3.94’)Color: Black/Gray/White or CustomizedLock: Three balls clutch, Standard/SuperDescription: Round Top or flat top, attach on clothing, sporting goods, luggage etc.