Open box from Sony distributor. Not in original Sony packaging. Fully tested and inspected. Bought in bulk to offer great prices to our customers. The headphones are still like new but may have a few scratches due to handling. Guaranteed to work. Included: Headphones, AAA Battery and Airplane Adapter. BATTERY IS INCLUDED!! Features Noise Cancelling reduces up to 95% ambient noise Swivel, folding design for ultra-portability 30mm dynamic driver unit for clear and rich sound 80 hours battery life (Noise Cancelling on) Works even when battery is depleted (passive operation) General Type Closed Driver Unit 30mm Dynamic Frequency Response 10Hz-22,000Hz Sensitivity Power ON 115 dB/mW, OFF 110 dB/mW Impedance (at 1 kHz) Power ON 220 ?, OFF 45 ? Cable 1.2m Y-Type Plug L-shaped Gold-plated Stereo Mini Approx. Weight(excl. cable) 150g incl. battery Active Headphones Headphone Power Indicator LED (green) Batteries Dry Battery(Size AAA) Battery Life Max. 80 hours (alkaline battery), 40 hours (manganese battery) Passive Operation Yes Noise Cancelling Total Noise Suppression Ratio dB Approx. 13dB Total Noise Suppression Ratio % Approx. 95% Return Policy: Our 100% Satisfaction Guarantee promises that our products have been tested and fully work. We accept returns up to 30 days from delivery. Items just need to be in their original condition and packaging as received. We will apply a 20% restocking fee for returns if there were no issues with the item or if you changed you mind or didn't like them. If you have any issues, please give us the opportunity to resolve your concern. If the item is defective, non working, or does not match description, please contact us for an easy return.