Note: This item comes with plug, please confirm the voltage of your area before purchasing. Description Bad ? Communication breaks down from time to time? Are you troubled by any of these issues? Then our relay amplifier kit can help. Provides a practical solution to the problem of loss in all areas. Features - ColorAssorted Color -Material: Electronic component, metal, ABS - Size: 32.00X21.50X5.80cm/12.58X8.45X2.28in - Voltage: AC110V -Frequency range: 900/1800/2100 -Speed: 300-600m -Model number: -Application scope: mobile blind area or no area - mode: -Coverage area: 500-1000 square meters -Built-in firewall: Yes - -band fluctuation: /3db+ -Coverage: 500-2000+ -Power: 0.9W + -Gain: 65DB - amplifier: Provides a practical solution to the problem of loss in all areas. -Premium quality materials: Electronic component, metal, ABS stable performance, no radiation, safe to use -Wide coverage: The amplifier adopts intelligent dual-core chip chip to improve the multi-direction penetration -LCD display: Clear LCD display easy to measure, let you know how to use -Widely used: amplifier is suitable for families, hotels, shopping malls, villas, large residential, etc Package list: 1 x Amplifier Kit