Bluetooth Earbuds – Waterproof – Built-in microphone – Volume control – Bluetooth Version 5.3 power class 1, Frequency range: 2.4 GHz Interfaces: A2DP, AVRCP, HFP, HSP, Supported codecs: SBC, AAC Frequency range: 20 Hz – 20,000Hz (sampling 44.1Hz) Multi Pairing, Multipoint Connection, Manual Pairing, Google Fast Pair, Headphones Connect Easy Pairing Features Ambient Sound Mode, Equalizer, CLEAR BASS, Now Playing, 360 Reality Audio Setting, Sound Quality Mode, DSEE, Siri, Google Assistant Call features HD Voice, Echo Cancellation, Noise Suppression, SideTone Applications Music center, Headphones Connect, EQ Preset selection, EQ customization Technical specifications Type: closed, dynamic, 6 mm driver, IPX4 certified (splash protection), Weight: earbuds approximately 4.6 g x 2, charging case approximately 35 g Integrated rechargeable lithium-ion battery, Earbuds battery capacity: 70 mAh x 2, Charging case battery capacity: 300 mAh Battery life: During Bluetooth connection, Music playback time: Max. 11 hours Communication time: Max. 5 hours Earbuds charging time: Approximately 1.5 hours for a full charge, The unit can be used for 1 hour after 5 minutes of charging Charging case time: Approximately 1.5 hours for a full charge, Power consumption: 2.2 W – Introducing the Sony WF-C510 earbuds: incredibly comfortable, with fantastic sound quality and packed with features, these are among our smallest and lightest earbuds ever! Each earbud weighs only 4.6 g, in an ergonomic design that ensures comfort and stability, these Bluetooth earbuds can be worn for long periods in perfect comfort. They also sound amazing. With Sony’s DSEE technology to upscale compressed music closer to its original quality and an easy-to-use equalizer that allows you to adjust the audio to your personal preferences, such as boosting the bass for a richer, deeper sound or increasing the highs for greater clarity and detail. Alternatively, you can choose from one of the audio presets to find the best sound for you. These Sony Bluetooth earbuds feature Ambient Sound mode, so you can stay aware of your surroundings without having to pause the music or remove the earbuds. Perfect for staying safe while jogging, listening to announcements, and more. With 22 hours of playback (11 hours from the earbuds, plus 11 extra hours from the case), you can keep listening to the WF-C510 all day. And with a quick charge function that gives you 1 hour of playback with just a 5-minute charge, you won’t be without your music for long. The wireless earbuds are rated IPX4, meaning they are water-resistant. So, there’s no need to worry about workout sweat or being caught in the rain. Incredibly lightweight, extremely comfortable, and available in four different colors, you can enjoy your music in style with the WF-C510.