Specification: Item Type: RF Modulator Material: Plastic TV Standard Format: NTSC Frequency Range: CH3=61.25 / CH4=67.25 Output Impedance: 75OHm Output Level: 805dBV Accompaniment System: M=4.5MHz Video Input Impedance: 75 Ohms/1k Ohms (Switch able) Input Impedance: 133k Ohms TV to Ant I Input Loss 50-860: -62dB A/V Connection: Female RF Input: F Female RF Output: F Female Power Consumption: 5Volt DC, 500mah(min) Operating Temperature: 0 ~ +40 Package List: 1 x RF Modulator 1 x Transmission Line 1 x English Manual [Practical] Supports your local CATV system, offering convenience and cost savings. [Stable Performance] PLL controlled VHF working frequency, HD input, A/V output, RF output with multi-channel selection. [Convenient to Use] Supports NTSC TV format output, plug and play without the need for driver installation, portable and flexible. [Design] Personalized design with exquisite workmanship, appealing to your aesthetic sense. [Premium Material] Made of high-quality plastic material, sturdy and durable with long service life, ensuring stable performance and reliability. [Practical] Supports your local CATV system, offering convenience and cost savings. [Stable Performance] PLL controlled VHF working frequency, HD input, A/V output, RF output with multi-channel selection. [Convenient to Use] Supports NTSC TV format output, plug and play without the need for driver installation, portable and flexible. [Design] Personalized design with exquisite workmanship, appealing to your aesthetic sense. [Premium Material] Made of high-quality plastic material, sturdy and durable with long service life, ensuring stable performance and reliability.