Listen to music on the go with these Sony wireless headphones. Their built-in Bluetooth technology lets you stream curated playlists from a compatible device, and they offer 4.5 hours of battery life on a single charge to support long listening sessions. These Sony wireless headphones have an omnidirectional microphone for answering calls hands-free.
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.
Offers up to 20 hours of use and lasts up to 200 hours on standby mode.
Lets you enjoy hands-free calls.
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.
Delivers crisp tones.
Sony C400 Wireless Behind-the-Neck In Ear Headphones
1. Decent sound quality
3. Fitment around neck secure
4. Vibrates on calls
1. All controls and indicator lights are on the neck side of device,since it's not moisture resistant,sweat can damage device...they should be on the outside
2. Hard plastic body transfers any rubbing or fabric noise to microphone into you ear
3. The earphone cord themselves transfers noise to your ears also
4. If you try to place it outside of shirt under you collar to avoid skin contact...It get pull out of ear a lot because cord loops from the outside in very high on the device and its always in the way
5. Can't find instructions on how to turn on/off vibrate or power level info
I would not recommend that you buy this at full price, like I did, wait for a sale
The analysis of all aggregated expert reviews shows that the reviewers are positive about reliability, design, comfort and usability. Editors have mixed opinions about durability.
rtings.comRating, 3.1 out of 53.1Sam Vafaei , Marc Henney, Yannick Khong on April 5, 2018
Sony WI-C400 HEADPHONESThe Sony WI-C400 are average-at-best wireless in-ears with an easy-to-use control scheme and a long battery life. They're stable enough for sports use and have a decently comfortable fit, but they have a treble-heavy sound that may be a bit too
A:AnswerHello jam, you may use an adapter to charge it directly on the wall outlet. However, charge the headset using the supplied micro-USB cable and avoid using any fast-charging adapters.
A:AnswerHi Kieka, these headphones have a maximum playback and communication time of 20 hours. The 4.5 hours (approx.) is its charging time. You may refer to this link for more information: https://docs.sony.com/release//Manual_4698106111.pdf Regards, -Mark
A:AnswerHi there! No. This unit is not water resistant. To know more about this unit, you may visit the link below:
A:AnswerYes , you can connect them to the tv however you tv has to have a bluetooth connection and support the same revision, if not then you have to buy bluetooth transmitter/receiver tha support your device.
A:AnswerHi there! Yes. The left unit of the headset vibrates when an incoming call arrives. A ring tone will be heard from the headset as well, and the indicator (blue) flashes quickly: https://helpguide.sony.net/mdr/wic400/v1/en/contents/TP0001513169.html