Sony – C400 Wireless Behind-Neck in Ear Headphone White (WIC400/W)

Enjoy high-quality sound, from wireless headphones with colors that complement your personal style. Wireless Bluetooth and NFC in-ear headphones with comfortable neckband, 20 Hour battery and hands-free controls. Frequency Response: 8–22,000 Hz; Volume Sensor: Yes

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Easy Bluetooth connectivity with NFC One-touch
Up to 20 hours of battery life
0.35 inch neodymium drivers for dynamic sound
Comfortable behind-the-neck style with cable management
Vibration for incoming calls
In the box: USB Cable (Micro-USB cable (approx.19 3/4 inch. (50 centimeter))
Connectivity technology : Bluetooth