Razer Synapse

Razer Synapse is a hardware configuration tool developed by Razer specifically for the configuration and use of Razer accessories. It lets users control DPI, lighting, keybindings, and more within Razer accessories.

Bad Qualities

 * 1) You need an internet connection and an account to download drivers or change any settings.
 * 2) When you plug in a Razer peripheral for the first time, an automatic notification notice pops up, and it is intrusive.
 * 3) Whenever Synapse is done updating or installing drivers, it will force you to restart your computer for the changes to take effect.

Accessories itself

 * 1) The Razer Basilisk wireless mouse forces you to use batteries, whereas other accessories can be charged.
 * 2) You can't use accessories on USB 3.0 ports thanks to radio frequency interference. Worst of all, they can also interfere with your Wi-Fi card and can temporarily cut internet access.

Good Qualities

 * 1) The Razer Basilisk has long battery life.