Feel the HUM! Enjoy your all that your 510 cartridges have to offer, with our compact and ergonomic vaping system. Touting a haptic vibrational feature, HUM takes a new approach to dosing awareness, no more second guessing. HUM provides a unique experience that gives control back to users and also makes for a more efficient use of oils. Get your hands on our HUM & HUM2! Visit www.hellohum.com or check us out on instagram @hellohum_official.