Brian Santo from Gardenland Power Equipment explains the key features of the Echo PB 770H backpack blower. The Echo PB 770H backpack blower has a big 63.3cc engine and pushes a wind speed of 234mph. It’s the perfect leaf blower for a homeowner with a large property to maintain, or for the demanding needs of a gardener and landscaper. Visit Gardenland in Campbell, California to shop our complete line of Echo power equipment or call us at 408-377-4496.