PRODUCT GRADING (Grade A) - Excellent Condition > Minor if any signs of use and wear > Refurbished to the highest standards. (Grade B) - Good Condition > Very light scratches and light signs of use > Refurbished to the highest standards. (Grade C) - Fair Condition > Visible scratches and signs of use throughout > Refurbished to the highest standards. Item may arrive in non-original packaging. WHAT IS IN THE BOX Sony WH-XB900N Extra Bass Noise Cancelling Wireless Bluetooth Headphones with Mic PRODUCT DESCRIPTION Sony wh-xb900n extra BASS wireless Noise Cancelling Headphones, up to 30 hours battery life, hands free call, Alexa. When the noise cancelling effect is not sufficient, make sure that the noise cancelling function is turned on. Adjust the ear pad position to fit your ears. The noise cancelling function is effective in low frequency ranges such as airplanes, trains, offices, near air-conditioning, and is not as effective for higher frequencies, such as human voices. Wireless Headphones A wonderfully rich, well-rounded listening experience. As part of the EXTRA BASS™ range from Sony, the WH-XB900N headphones enhance all your low-end frequencies for punchy rhythms that lift every track. In addition to the EXTRA BASS™ sound quality, WH-XB900N also have noise cancelling technology. Punchy Sound A dedicated bass duct on the headphone housing helps to create precise rhythms on every track. PRODUCT INFORMATION Batteries ‏- ‎1 AA batteries required. (included) Product Dimensions ‏ - ‎ 26 x 22 x 8 cm; 254 Grams Date First Available ‏ - ‎ 28 May 2019 Manufacturer ‏ - ‎ Sony ASIN ‏ - ‎ B07RVC23SG