Introducing the Zebra ET4X Expansion Back, designed for the PowerPack External Battery and perfectly compatible with 8'' ET40/ET45 devices. This Expansion Back, with a weight of just 0.41kg, is the ideal solution for extending the battery life of your Zebra device. Manufactured by Zebra, you can trust in the quality and reliability of this product. Upgrade your device today with the Zebra ET4X Expansion Back.