- Applicable models: Y501/Y501-Y series, X305, i506W, i507W - Material: ABS - Number of keys: 1 - Modulation mode: FSK - Power supply: Self-powered - Radio frequency: 433MHz - Operating life: ≥ 100,000 times - Working temperature: -20~ +55°C - Operating range: Wide outside: 120-130m Spacious inside: 12-25m - Dimensions: 74 x 74 x 42.8 mm