Product Dimensions: 1.73 x 3.43 x 7.13 inches
Item Weight: 4.2 ounces
Manufacturer: Sony Bluetooth Noise Canceling Stereo Headphones MDR-NWBT20N Black (Japan Import)
ASIN: B00FF080J8
Item model number: MDRNWBT20N B
Batteries: 1 Lithium Ion batteries required.
Is Discontinued By Manufacturer: No