Features:  -- Ergonomic handle which is very convenient and safer for carrying.  -- Safety of sawing, effectively improve the efficiency of your work.  -- The saw chains has been hardening, temper and anneal.It is durable than normal saw chains.  -- Small size, can be held with one hand.  -- Lightweight body, light and convenient, lightweight design, long time holding and not tired hands.  -- Pure copper motor, strong power, fast cutting, improve efficiency.  -- Practical, fast speed, low power consumption.  -- Fine quality switch, fast and slow adjustment, stepless speed change.     Specifications:  Color: Blue, Black, Red;  Power: 550W;  Battery: 98VF Li-ion Battery;  Guide length: 4 inch;  Voltage: 21V;  Chain speed: 5m/s;  Size: (H)36cm/14.2 in;  Rotating Speed: 3000r/min;  Chain Material: High Carbon Steel.     Package Included:  1 x Electric Chain Saw;  1 x Battery;  1 x Charger(US/EU/AU/UK Plug);  1 x Wrench;  1 x User Manual.