【Used】 Sony SONY Cordless Stereo Headphones (for Expansion) Open Type MDR-IF245R 【Manufacturer】 Sony (SONY) 【Manufacturer Model Number】 MDRIF245R 【Brand Name】 Sony (SONY) 【Product Description】 Sony SONY Cordless Stereo Headphones (for Expansion) Open Type MDR-IF245R Type: Open Air Dynamic Driver Unit: 40mm Frequency Response: 10-24,000Hz Power: Rechargeable Nickel-Metal Hydride Battery Charging Time: Approximately 7 hours Please see the photos before purchasing. Returns and exchanges are not accepted. Please make sure to confirm before purchasing. Please refrain from purchasing if you do not understand that this is a used item, or if you are looking for a perfect condition item. The item will be shipped in the condition shown in the photos. Thank you.