Logitech Rally Camera Remote Control. Interface: RF Wireless, Product colour: Grey, Compatibility: Logitech Rally. Battery type (transmitter): CR2032, Battery capacity (Watt-hours): 0.675 Wh, Battery technology: Lithium-Ion (Li-Ion). Master (outer) case gross weight: 3.08 kg, Master (outer) case length: 264 mm, Master (outer) case width: 213 mm. Package width: 100 mm, Package depth: 187 mm, Package height: 15.9 mm