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The WI-XB400 EXTRA BASS Wireless In-Ear Earphones from Sony plays your favorite music through its 11.9mm drivers while enhancing low-end frequencies for deep and thumping bass. Even with a bass boost, Sony's audio engineering is designed to maintain vocal clarity. Your audio is received wirelessly via a Bluetooth-compatible mobile device, and the earphones have enough power for up to 15 hours of continuous playback.
The XB400 in-ear earphones also feature built-in controls and a microphone on the neckband. The microphone can be used to make hands-free phone calls and interact with your mobile device's voice assistant software. with one-touch access, you can ask your device questions, navigate to a destination, play music, set reminders, and much more. Other built-in controls let you manage audio playback, such as play, stop, skip, and volume adjustment.
When you're done listening but still want to keep the WI-XB400 earphones handy, simply click the magnetic earbuds together to wear them around your neck.
Key Features
Headphone
| Earpiece Design | In-Ear (Intra-Aural) |
| Earpiece Connection / Wearing Style | Neckband |
| Foldable | No |
| Driver Type | Dynamic |
| Number of Drivers | 1, per Earpiece |
| Driver Size | 0.47" / 11.94 mm |
| Magnet Type | Neodymium |
| Active Noise Cancellation | No |
| Controls/Microphone Location | Controls: Neckband Microphone: Earpiece (Side Unspecified) |
| Full Remote OS Support | Not Specified by Manufacturer |
Performance
| Frequency Response | 20 Hz to 20 kHz (Wireless) |
Wireless Connectivity
| Supported Audio Codecs | AAC, SBC |
| Bluetooth Profiles | A2DP AVRCP HFP HSP |
| Bluetooth | 5.0 |
| Wireless Range | 30' / 9.1 m |
| Frequency | 2.4 GHz (2.4 to 2.4835 GHz) |
| NFC | No |
Wired Connectivity
| Audio Connector to Source | Not Specified by Manufacturer |
| Audio Connector to Earpiece | Not Specified by Manufacturer |
Battery
| Runtime | 15 Hours (Music) 15 Hours (Talk) 200 Hours (Standby) |
| Quick Charging Times | 10 Minutes for 1 Hour |
| Recharge Time | 3 Hours |
| Charging Port | USB Type-C |
| Charging Cable Length | 7.87" / 19.99 cm |
Physical
| Weight | 0.7 oz / 19.8 g |
Packaging Info
| Package Weight | 0.26 lb |
| Box Dimensions (LxWxH) | 6.2 x 3.7 x 1.6" |