Sony WI-C100 Wireless In-Ear Headphones with Built-in Microphone - Black Condition:Grade C Requires 2x AAA batteries (No

Requires 2x AAA batteries (No batteries included)

Refillable standard AA battery compartment (some special batteries required for charging stand)

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Sony WI-C100 Wireless In-Ear Headphones with Built-in Microphone - Black Condition:Grade C Requires 2x AAA batteries (NoSony WI C100 Wireless In Ear Headphones with Built in Microphone. Black version. Features: Long battery life of up to 25 hours DSEE restores high frequency sounds lost in compression Splash proof and sweat proof with an IPX4 rating Easier, clearer hands free calling Fine tune your sound using the Sony Headphones Connect app Easy to operation with buttons to play and pause, skip tracks and adjust the volume A well balanced shape around the neck ensures