Package Included: 1 x Wireless Presenter remote control (not include the battery) 1 x USB Receiver Specification: Brand new Switch: Button Color: Black Light Color: Red Control Distance: 10M Light Style: Beam light 5MW Size (approx.): 10.5 x 3.9 x 2.6 cm Net Weight (approx.):29 g Package weight (approx.): 30 g Power Supply: 1 x AAA battery (not included) Function: page up and down function Operating System: USB interface and for Microsoft Windows 2000 / XP / Vista Supports MS Word, excel, PowerPoint, ACD See, website etc., with page up and down function Features: This 2.4 GHz wireless remote pointer is small and exquisite, portable and with richer applications. An essential nice assistant of demonstrations or presentations, you can easily point to the PPT or blackboard in any corner of classroom. Making your demonstrations or presentation seem more dynamic and making listeners feel release. This pointer is also the best gift for friends and families No hassle setup, simply plug into your computer’s USB port USB receiver is plug and play - no driver required Power saving, lightweight, suitable for putting in your pocket or handbags This high quality laser pointer adopts the latest technology red laser optics and microelectronics Note: Please allow minor error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.