1. With backlight, you can use this digital finder at night. 2. Stylish exterior and convenient to carry. 3. Perfect for remote satellite dishes. 4. This is an excellent professional digital TV signal finder with excellent sensitivity. 5. Create a digital TV era for you so you can enjoy a happy life. Specifications: ?: With backlight, you can use this digital finder at night. Stylish exterior and convenient to carry. Perfect for remote satellite dishes. This is an excellent professional digital TV signal finder with excellent sensitivity. Create a digital TV era for you so you can enjoy a happy life. Specifications: Frequency Range: 170-860MHz Input Level Range: -40~-10dBm Impedance: 75Ω Insertion Loss: ≤5.0dB Power Supply: 9V DC Operating Temperature: 0~40℃ Dimension: 12.5 * 6.4 * 3.5cm / 4.92 * 2.52 * 1.38in Package Weight: 196g Package List: 1 x Signal Finder 1 x Power Cable 1 x AA Battery Box (Batteries not included) 1 x User Manual