Easy on the Eyes: 10 degree tilt angle between left and right lenses reduces eyestrain and flicker. Lighter Design: 1.2 oz weight is 42% lighter than 2nd generation (TDG-BR250/B) glasses and 55% lighter than first generation (TDG-BR100) glasses. Extended Comfort: Proper weight distribution of 80%/20% (Front/Rear) ensures a comfortable, balanced wear - even during extended viewing sessions. Custom Fit: Titanium Earpieces can be adjusted to ensure a high-comfort fit for everyone in the family, including children and younger viewers.5 Min = 3 Hrs: If you’re in a hurry, a quick 5 min charge via usb gives power for 3 hours viewing. A 40 min charge via USB gives sufficient battery power for 15 hours.