Sony WI-C100 Wireless In-ear Headphones - Up to 25 hours of battery life - Water resistant -Built-in mic for phone calls - Voice Assistant compatible - Reliable Bluetooth® connection - Black. Long battery life of up to 25 hours Enjoy up to 25 hours of non-stop music. And if your Bluetooth headphones are running low on power, a quick 10-minute charge will give you up to 60 minutes of playback. These comfortable Sony wireless earbuds will get you through the day, from your morning commute to unwinding at the end of the day. Make your music sound more natural. Tuning is well-balanced from low to high frequencies, and vocals are natural and clear. This means these in-ear headphones can match any music genre. When an original music source is compressed. Your sound, just how you like it. With these Sony headphones, you can tailor your sound to your personal preference. Choose from a variety of presets to match the genre of music you’re listening to or create and save your own custom presets using the equaliser feature on the Sony - Connect App. Headphone FeaturesSilicone ear pieces. USB - C cord. Connection: wireless. Bluetooth enabled for a wireless connection to your devices . Connects to devices via Bluetooth 5.0. With a USB connection. 9mm driver. In-line controls. 10m range. Bass control. Water-resistant. IPX4 splashproof. Compatible with universal smartphones. Batteries required 2 x Li-Ion battery (included) . Rechargeable battery. 25 hour battery life. 10 minute charging time. Fast charge to boost battery life. In the box: Earbuds, Warranty Card, Reference Guide, S/M/L silicone Eartips. General InformationModel number: WIC100B. CE7. Manufacturer’s 1 year guarantee. EAN: 4548736133846. Warning - Not suitable for children under the age of 3 years due to small parts and entanglement hazard. Caution – To prevent possible hearing damage, do not listen at high volume for long periods.