2-in-1 Dual Design for Side Sleepers & Day UseOne charging case includes two styles: ultra-flat earbuds designed for side sleepers to minimize pressure, and mini in-ear buds for secure, discreet wear during work or workouts. ^^ Ultra-Low Profile & Invisible ComfortCrafted with an ultra-low profile, these earbuds sit flush within the ear for a nearly invisible look and exceptional comfort, especially for small ears and canals. ^^ Noise-Blocking for Focused Sleep & WorkThe soft silicone ear tips help create a gentle seal to reduce ambient noise, aiding in better sleep or focused work without complete sound isolation. ^^ Secure Bluetooth 5.3 & All-Day BatteryFeatures stable Bluetooth connectivity for seamless audio. The compact charging case provides multiple additional charges for extended use throughout the day. ^^ Two Styles, Use & Switch Your purchase includes two earbud styles (M125 in-ear & M126 flat )the M125 and M126 are two independent pairs. Please use and connect only one pair at a time. If both are connected, audio will only play through one. Simply put the current pair back in the case and take out the other to switch.