200m 2.4G Single Channel Wireless Follow Focus Remote Control for SLR Camera Parameters: - Power Supply: built-in Lithium Battery 7.4V-1600mah Working Time: 5-8 hours - Working Range: 200 meters - Charging Power: 220V Wireless network: - 2.4G wireless transmission Feature: - Simple in design with small size, it's easy to operate - Multi-functional: a. The knob synchronous control servo;b. Motor torque is 15kg/cm, can work with many lens - Single channels, memory focus focusing speed is adjustable, with limit Package List: - Wireless controller x 1 - Wireless receiver x 1 - Follow focus gear x 1 - Follow focus ring x 1 - Charger x 2 - Motor holder x 1 - Aerial aluminum case x 1 - Other spring cable. Usually it cost about 35USD-50USD. If you receive defective item, please kindly notify us within 14 days.The item "2.4G Wireless Follow Focus Single Channel Remote Control with Limit for Camera" is in sale since Wednesday, May 2, 2018. This item is in the category "Cameras & Photo\Film Photography\Movie Camera Accessories". The seller is "thanksbuyer-hobby" and is located in Shenzhen. This item can be shipped worldwide.