I copied the following from an eBay auction for a Boliy Pro3600SI:
You are looking at the new Boliy Digital Inverter generator that output 3,300 maximum and 3,000W continuous. It is brand new in box and in stock ready to ship.
World most advanced inverter generator with true digital signal processing with pure sinewave output
Quiet, Light Weight, Variable Engine speeds and up to 8 times quieter than conventional generators.
Will power up to 15000 BTU RV rooftop AC unit.
Included 30 A RV Receptacle (TT-30R) for easy RV connection.
Maximum output 3300W, Rated Output - 3000W at 120V (60Hz) with 12V, 8 Amp DC charging (cord included).
Perfect and stable sinewave output at 120V good for all electronics devices.
Save 40% gas over conventional generator, you can pay for this generator with the gas saving for about 1,500 hours of operation.
Noise Level from 53 to 58 dB at 23 feet, 4.5 to 16 hours run time, only 68 lbs
Boliy Pro3600SI is a true Digital Signal Processing (DSP) inverter generators. Similar Honda, Yamaha, and Kipor use the transistor induced technology which is just simulated signal processing. With the advance German made microprocessor, the DSP resulted in a power conversion rate of 20% higher with compatible inverter generators from Honda, Yamaha, and Kipor. The voltage is adjusted to maintain at stable 120V by the computer inverter module. The light weight design makes them ideal for transportation.
Digital Inverter Generators
One of the challenges of power generators today is to combine compact size and low noise with environmentally friendly emissions. The answer to these needs through the development of digital inverter generators. These smart, reliable, and quiet units produce smooth and consistent electrical output. Their sinewave inverters are suitable for sensitive digital electronics that most conventional generators won't work well.
Boliy Digital Generator is Semi-portable and Light Weight
Boliy digital inverter generators are approximately 50% lighter than traditional generators because the alternator is directly connected to the engine, and the flywheel is therefore eliminated. The voltage is constantly adjusted to maintain at 120V by the computer inverter module. The light weight design makes them ideal for transportation.
Boliy Generator is Quiet
Boliy digital inverter generators have a new two-tiered noise dampening system, so the noise emitted by these generators is 6-9 dB less than traditional generators. This translates to 4 to 8 times quieter than conventional generators. A 3 dB drop in noise level represents the half amount on the actual noise. This meets the new noise ordinances that some state and national parks have adopted.
Boliy Generator is EPA Approved
Boliy high-performance combustion system reduces emission levels to the lowest limit. Each Boliy comes with an EPA label. The engine is from the same factory that made the Yamaha engine with special Nikasil (nickle alloy) coating for durability and efficiency.
Boliy Generator is Quality Power
The power wave of this generator set is a perfect sinewave. This produces a "clean" power output that can run precise equipment or instruments sensitive to any disruptive voltage fluctuations, such as desktop computers, life-supports, etc. Use of non-sine wave power generators (most conventional generators), may over time, damage those equipment.
This generator is equipped with the unique smart-throttle. It can automatically regulate the engine speed according to the load, so the fuel consumption of digital generator sets is lower by 40%, than traditional sets, the running time is therefore much longer as well. The noise level is further reduced at lower running speed.
Rated Frequency (Hz): 60
Rated Voltage (V): 120
Rated Current (A): 25
Rated Rotation Speed (rpm): 800 - 4,000 depends on load
Rated Output Power (W): 3000
Max. Output Power (W): 3300
DC Output (cable included): 12V-8A
Electric Circuit Breaker: Automatic computer controlled breaker
Phase Numbers: Single phase
Fuel Tank Capacity: 1.9 gallon
Rated Continuous Running Time (hr):
4.5 at full load, 8.3 at half load
Noise Level [dB(A)/7m] (Zero Load): 53
Noise Level [dB(A)/7m] (Full Load): 58
Dry Weight: 68 lbs
Dimensions (inches): 23 X 16.5 X 18.5
EPA Certified Engine: 171cc OHC, 4-stroke, Nikasil coated engine (same as Yamaha EF3000IS)
Muffler (OK to use in National Parks): USDA Spark Arrest Muffler
Warranty: We offer 2 years warranty for parts. Our service center is in the United States. We have most major spare parts in stock. Our service technician is ready to help you.