The Echo PB-250 is a handheld blower with a 25.4 cc, 2-stroke engine that can reach speeds of 165 MPH and 391 CFM. It has a low noise output of 65 dB(A) and features like Posi-loc pipes for a secure connection, a curved blower tube for rotational control, and operator-friendly controls. 
Here are some insights from reviews: 
Pros 
Low noise
Runs clean
Starts every time
Great for homeowners
The Echo PB-250 has a see-through fuel tank that holds 16.9 fl. oz., a front exhaust, and a spark arrestor screen. It also has a safety decal that lists important safety precautions