WF-1000XM3 True Wireless Noise-Canceling In-Ear Earphones from Sony incorporates sophisticated noise-canceling technologies to isolate you with only your favorite music, TV shows, podcasts, or other audio entertainment. The 1000XM3 earphones utilizes forward and rear-facing microphones to take in distracting ambient sounds and noises, and Sony's QN1e HD noise-canceling processor works to completely filter them out. Thanks to DSEE HX technology, your compressed digital files are upscaled to get them close to high-resolution quality. This audio is transmitted via Bluetooth from your nearby mobile device and the built-in Bluetooth chip is designed to keep signals solid and in sync. Made to stay secure in your ears, these wireless earphones can work all day long with up to 8 hours of battery life, and another 24 from the handy magnetic charging case. Features: 6mm closed dynamic drivers Two noise-canceling mics & QN1e NC chip Up to 8 hours of playback 24 additional hours with charging case DSEE HX audio upscaling technology Bluetooth 5.0 technology Simultaneous streaming to both earbuds Built-in mic for hands-free calling Support for Google Assistant Tri-Hold design & anti-friction rubber Specifications: Driver unit: 40mm, dome type (CCAW Voice coil) DSEE HX: Yes Input(s): Stereo Mini Jack Frequency response: 4Hz-40,000Hz Frequency response (Bluetooth Communication): 20Hz - 20,000Hz (44.1kHz Sampling) / 20Hz - 40,000Hz (LDAC 96kHz Sampling, 990kbps) Frequency response (Active operation): 4Hz-40,000Hz Passive Operation: Yes NFC: Yes Cord length: Headphone cable (approx. 1.2m, OFC strands, gold-plated stereo mini plug) What's in the box 1 x Sony WF-1000XM3 True Wireless Noise-Canceling In-Ear Earphones - Black