Custom oversized 40 mm dynamic drivers produce Hi-Res sound Reduce Ambient Noises By Up to 90% Ultra-fast Bluetooth 5 connection between headphones and mobile device 100% Stronger Bass 2 beam-forming microphones and a noise-cancelling algorithm isolate vocals from background Oversized 40mm bio-composite driver generates amazing sound with great bass 60-Hours of playtime (ANC off), 40-hours of playtime (ANC on) What comes in the box: Micro USB cable, 3.5mm AUX cable, travel pouch, welcome guide Gift box dimensions: 6.5"L x 9"H x 2.9"W Includes Lithium battery