The adapter can be seen in the picture pretty small. The software can also be installed without a problem, but does not support all new Bluetooth services error free. A new version of the bundled software (BlueSoleil) is unfortunately a fee and exceeds the price of the adapter several times. For the intended purpose of me an Apple Magic Mouse on a Windows PC, the adapter in connection with the old software version is not usable. However, other Bluetooth "tasks" (File Transfer, modem function via the mobile phone, etc.) he performs reliably, therefore, despite the old software three star.