100% functional, possible blemishes, replacement packaging.
From the manufacturer:
Take your tunes on the go with JBL‘s Everest 300 On-Ear Wireless Headphones in blue. These headphones connect to your mobile device using Bluetooth 4.1, enabling you to stream audio without wires. An echo-cancelling microphone lets you take calls without removing your phone from your pocket. ShareMe 2.0 lets you connect to another pair of Bluetooth headphones, wirelessly transmitting your audio so you can listen together.
The built-in rechargeable battery lasts for hours on a charge and can be replenished with the included micro-USB cable. Also included is a 3.5mm audio cable for wired connectivity.