Case acts as a dongle to wirelessly transmit audio to the earbuds. Dual drivers for clarity and powerful bass. Hi-Res certified audio wirelessly with LDAC. JBL Spatial 360 sound with Head Tracking. True Adaptive Noise Cancelling 2.0. 6 Mics for calls with JBL Crystal AI Algorithm. Personi-Fi 3.0. Smart Ambient. JBL Headphones app. 11 Hours of battery life with ANC off - 33 with charging case. Driver size: 10mm + 5.1mm 2.8mm Balanced armature. Includes: USB Type-C cable. USB to Analog 3.5mm cable. USB charging cable. 5 Sizes of eartips. 1 Set of foam tips.