Battery Not Included: This RF Sweep Frequency Generator does not come with a battery, ensuring you can customize your power source according to your specific needs and preferences for optimal performance. Free of High-Concern Chemicals: Our generator is designed with your safety in mind, containing no high-concern chemicals. It's an ideal choice for those who prioritize environmental and personal health. Ideal for Electrical DIY Projects: The Qiilu RF Sweep Frequency Generator is perfect for electrical enthusiasts and professionals alike, offering precise frequency sweeping capabilities for a variety of DIY projects. Authentic Quality from Mainland China: Manufactured with precision and care in Mainland China, our generator stands out for its reliability and durability, backed by the trusted Qiilu brand name. Specifications: Item Type: Signal Generator Output Frequency Range:137.5M-4.4G Power Supply and Communication Interface: TYPE C 5V at 0.2A Output Signal: 2.2-4.4G fundamental wave (sine wave), 35M-2.2G fundamental frequency division (square wave) Output Signal Interface: SMA Female Control: PC controlled with provided software and data cable Note: The product type ( or old) is shipped randomly. Please ensure this is acceptable before ordering. Payment must be completed within 3 days of order. Worldwide shipping available, with items dispatched from the nearest warehouse for quick delivery. Buyer is responsible for import duties. Color: As Shown Material: PCB Package Contents: 1 x Signal Generator, 1 x Data Cable