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Feature

This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day limited hardware warranty.
Smart Listening by Adaptive Sound Control automatically detects your activity, whether you're walking on a crowded street or sitting in a quiet area. You can customize them to your preferences with the Sony I Headphones Connect App.
Enjoy up to 9 hours of battery life, with 3 hours of music playback and up to 9 hours play time with chargeable carrying case.
Listen free from unwanted background sound with Digital Noise Cancellation; Just your music, with no wires to get in the way.
Conversation flows freely with easy, hands-free calling. Leave your phone where it is: just speak with a tap.

Description

These true wireless, minimal design earbuds fit securely in your ears, and with digital noise cancelling, all you hear is your music. The Smart Listening technology can detect your activity and adjust the noise cancelling levels appropriately, and with a chargeable case, you'll get up to 9 hours of uninterrupted, undisturbed sound wherever you go.