Check the listing for details. Remote Air 4 Wireless Follow Focus System w/Hand Controller - PDMovie. Color: Black, Condition: New. Listed at 199.99 USD. Model: PD2-M1-A Includes wireless focus motor and 3-Channel hand controller Hand Controller is capable of controlling up to three motors Motor is now thinner and lighter than the previous generation 4 times drive resolution than the previous generation New easy motor calibration works on lenses with and without hard stops Motor display shows channel, signal strength, battery life, motor voltage, and Bluetooth connection confirmation in addition to Motor position Brushless motors were designed in and imported from Germany 2.4G wireless technology, a Bluetooth 4.0 module, and full-duplex transmission for distance, control, and accuracy Maximum transmission distance of 100m High-capacity integrated battery gives 30 hours of operation time Adaptable for 3D shooting What's Included: 1 x Focus/Iris/Zoom Controller 1 x PD-RX REMOTE AIR Receiver Motor 1 x D-Tap Power Cable 1 x USB Charging Cable 1 x Micro-USB Charging Cable 1 x 15mm/19mm Adapter Bushing 2 x Glow in the Dark Marking Disk 2 x Short Antenna 2 x Long Antenna 1 x Lanyard Shipping Weight (lbs): 3 Shipping Dimensions (in): 11 x 8 x 4 Battery: Controller: Voltage: 3.7 VDC | Capacity: 2040 mAh || Motor: 12 to 18 VDC Dimensions: Controller - Body: Width: 1.91" / 4.85 cm Thickness: 0.70" / 1.78 cm | Handwheel: Width: 2.43" / 6.17 cm Thickness: 2.25" / 5.72 cm || Motor - 4.23 x 2.6 x 0.91" / 10.74 x 6.6 x 2.31 cm Fixture Weight: Controller: 0.63 lb / 0.29 kg | Motor: With 15 mm Rod Clamp: 0.41" / 1.04 cm Without 15 mm Rod Clamp: 0.36" / 0.91 cm Gearing: MOD: 0.8 Teeth: 40 Noise Db: