The Walkman Blog: Sony to introduce new Wireless Stereo Headset (WI-C400) (Update)
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Sony WI-C400 Wireless Review - RTINGS.com
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Sony WI-C400 Wireless Review - RTINGS.com
Sony WI-C400 Wireless Review - RTINGS.com
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Amazon.com: Sony WI-C400 Wireless in-Ear Headphones with up to 30 Hours Battery Life - Black : Electronics
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Sony WI C400 Wireless Stereo Headset How to Pair - YouTube
SONY WI-C400 Wireless In-ear Headphones
Sony WIC400/B SONY WI-C400 WIRELESS IN-EAR HEADPHONES -
