Sony WI-C400 In-ear Wireless Headphones - Grey

Sony WI-C400 Wireless in-Ear Headphones with up to 20 Hours Battery Life. Listen to your favorite music in private with this Sony wireless headset. It has a frequency response rate of up to 22,000Hz for increased clarity at top volumes, and the behind-the-neck design keeps it in place. This Sony wireless headset has a battery life up to 4.5 hours for short road trips. In-ear design Fits securely and directs music into your ears for full, uninterrupted audio. Bluetooth 4.2 interface with NFC (Near Field Communication) technology Enables simple pairing and wireless streaming with compatible devices from up to 33' away. Supports HFP, HSP, A2DP and AVRCP Bluetooth profiles. Rechargeable battery Offers up to 20 hours of use and lasts up to 200 hours on standby mode. In-line microphone Lets you enjoy hands-free calls. 9mm drivers Deliver powerful sound. 8Hz - 22kHz headphones frequency response Along with a 50Hz - 8kHz microphone frequency response ensures faithful sound reproduction. Dynamic transducer design For reference-grade audio. Stereo design Delivers crisp tones. Reviews: Customers like the battery life, comfort, and connectivity of the headphones. They mention that they fit their ears perfectly, have great sound quality, and are easy to connect. Some appreciate the simple controls and long-life battery. Others love the performance and sound quality. It's a Sony, you can't go wrong.