Model: WH-CH720N Experience unparalleled comfort and tranquility with the Sony WH-CH720N Wireless Noise Cancelling Headphones. Boasting top-notch noise cancellation powered by Dual Noise Sensor technology and the Integrated Processor V1, these headphones let you immerse yourself fully in your music or calls. Enjoy extended listening sessions thanks to their lightweight design and plush earcups. With up to 35 hours of battery life, seamless Bluetooth multipoint connection, and crystal-clear sound enhanced by DSEE™ technology, these headphones redefine your audio experience. IN THE BOX: Headphones, Charging Cable, Audio Cable (3.5mm) PRODUCT SPECIFICATIONS: Manufacturer: Sony Weight: 192 g Frequency Response: 7 Hz - 20 kHz Battery Life: Max. 35 hours (NC on), 50 hours (NC off) Charge Time: 3.5 hours Bluetooth Version: 5.2 Effective Range: 10m