WK897: 80-key layout that can be altered HP - 1AA keyboard battery Mouse: 1 AA Simple Device Type and Switch On a computer, smartphone, or tablet, you can switch the typing device with a single button. Due to the fact that this GO Mochi can be linked to three devices—two via Bluetooth and one via 2.4 GHz wireless. Distinct & Simple to Read Keycaps This keyboard offers an appealing and user-friendly appearance thanks to its distinctive rounded button design and easily readable keys. Hand Comfort The design of the mouse is genuinely ambidextrous. You can work with the mouse in a variety of ways using both your left and right hands.