Google Nexus is a line of consumer electronic devices that run the Android operating system. Google manages the design, development, marketing, and support of these devices, but some development and all manufacturing are carried out by partnering original equipment manufacturers (OEMs). The product family consists mostly of mobile devices—six smartphones and four tablet computers have been released to date. As of October 2014, the devices currently available in the line are the Nexus 5 smartphone (made with partner LG Electronics), Nexus 6 smartphone (made with Motorola Mobility), Nexus 9 tablet (made with HTC), and Nexus Player set-top box (made with Asus). Devices in the Nexus line are considered Google's flagship Android products. They do not have manufacturer or wireless carrier modifications to Android (such as custom graphical user interfaces) and feature an unlockable bootloader to allow further development and end-user modification.Nexus devices are the first Android devices to receive updates to the operating system. The Galaxy Nexus is one of the few smartphones recommended by the Android Open Source Project for Android software development.