This is a bulk pack of ten genuine Zebra spare batteries, each rated at 4,680mAh and using Zebra's PowerPrecision Plus intelligent battery technology (which reports real-time charge level and health data back to the device and Zebra's fleet management tools, rather than being a dumb cell). They're listed as compatible with Zebra's TC53, TC58, TC53e, TC58e, TC53e-RFID, TC73 and TC78 rugged handheld computers — a common family of enterprise Android scanning/mobile-computing devices used in retail and logistics. Buying batteries in a set of ten like this suits IT/asset managers provisioning or refreshing an entire fleet of handhelds at once, rather than replacing a single device's battery individually.