Logitech Spotlight Presentation Remote - Slate (910-004867) – Connection Type: 2.4 GHz wireless connection, Wireless range: 30m, Battery Life (rechargeable): up to 3 months, Battery Details: Rechargeable 85mAh Lithium Polymer, LED Indicator Lights, Sensor technology: Motion Sensor, 3D Accelerometer and Gyroscope, Charging Cable Length: 140mm