Peace, mercy, and blessings of God be upon you, For sale: JLab Studio Wireless (Bluetooth) headphones in black. Condition: Like new, very light use, very clean and free of defects. Battery: Lasts up to 30 hours of continuous use on a single charge. Sound: Ability to switch between 3 sound profiles (Bass Boost / Balanced / JLab Signature) with the press of a button. Comfort: Comfortable earcups (Cloud Foam) and a lightweight, foldable, and adjustable design. Features: Built-in microphone for calls + volume and music controls on the headphones themselves.