Calvas E30 2.4GHz Wireless Keyboard with Built-in Trackball Mouse & Scroll Wheel - Universal Remote for Android TV Box, Smart TV, PC & Laptop (Black) | Perfect for Home Entertainment & Office Work

E30 2.4GHz Wireless Keyboard with Trackball Mouse Scroll Wheel Remote Control for Android TV BOX Smart TV PC Notebook This is a 2.4GHz wireless mini QWERTY keyboard and trackball mouse combo, with USB interface receiver. Plug and play, simple and smooth. The mini keyboard ensures convenient typing, and you can control your devices on your couch.Features:2.4GHz Wireless Connection:With included USB interface adapter, no driver needed, plug and play. 2.4GHz wireless connection, enjoy up to 9 meters wireless control.Wireless Mini Keyboard:The mini keyboard ensures convenient typing with classic keys and multimedia keys, and you can control your devices on your couch.Optical Trackball Mouse:Optical-sensor trackball controller strengthens the touch experience and ensures flexible control of the laptop or HTPC when there is no mouse.Scroll Wheel Design:The bottom right corner of the keyboard has the mouse left and right keys and scroll wheel which can randomly turn between two directions.Wide Applications:Compatible with Android, Windows and Linux OS. Suitable for XBOX 360, for PS3, HTPC / IPTV, Android TV Box, Laptop, projector and so on.Specifications:Model Number: E30Connection: 2.4G wirelessWorking Distance: within 10mAmount of keys: 79 keys + Scroll Wheel + TrackballButton Life Time: 8 million timesTracking method: optical mouse trackballMouse DPI: 1200Battery: 2 * AA battery (not included)Color: Black, Silver (Optional)Main Item Size: 26.0 * 11.8 * 2.5cm / 10.23 * 4.64 * 0.98inMain Item Weight: 223g / 7.87ozPackage Size: 28.0 * 12.6 * 3.5cm / 11.02 * 4.96 * 1.37inPackage Weight: 280g / 9.89ozPackage List:1 * Keyboard1 * USB Receiver1 * User Manual4. The images shown are not the actual item and are for your reference only.5. SERVICE TRANSIT TIME is provided b