SONY Wireless Stereo Headset WF-SP900 - Brand: SONY - Model: WF-SP900 - Type: Wireless Earphones - Accessories: Instruction manual, USB cable, ear tips - Color: Black Thank you for viewing. Upon testing, the main unit's LED blinks rapidly in red when charging, and charging is not completed. The product itself is in very good condition. This item is being sold as junk. (Please understand that we cannot accept returns or refunds even if the item does not work, so please purchase with your understanding.)