Used. With buttons, charging housings and chargers.The truly wireless WF-C700N counter-readers are designed for comfort above. Ergonomic surface material adapts perfectly to the ear, ensuring a more stable fit. In a pocket-sized charging case, the headphones are easy to carry. Sony's digital noise absorption effectively suppresses noises, or if you want to stay in touch with your environment better, the Ambient Sound environment makes it easier to detect traffic sounds and alerts while listening to music or talking to a phone.Digital Sound Improvement Technology Sony DSEE scales everything digital music closer to the quality of origin. Button headsets with an element of 5 mm produce a strong bass and bright vocal parts. These headphones are 360 Reality Audio certified for a seizing musical experience. In addition, you can customize the sound system to suit your liking with Sony .WF-C700N is ideal for daily use thanks to long battery life, fast charging, IPX4 water integrity and intelligent features. The Bluetooth Multipoint multipoint connection allows a couple connection to two devices at the same time. You can also receive calls without worry. You will always hear and hear clearly due to wind-absorbing technology.Sony recommends that you always update your device with the latest available software. Notifications of software updates and updates themselves are available via Sony Headphones Connect, which is available free of charge from Google Play and Apple's App Store.Properties:Use principle: In-earType: Closed, dynamicActive Noise Depression (ANC) Battery resistance (hearphones): Up to 7,5 h (ANc on) / Up to 10 h (ANC off) Battery life (with case): Upto 15 h (ANC on) / Up to 20 h (ANC off) DSEE (digital sound quality improvement technology)360 Reality AudioResistance Structure (IPX4)Equipment: 5 mmIndoor built microphoneHear frequency response: 20 - 20 000 HzBluetooth 5.2 A2DP, AVRCP, HFP, HSPTated Codecs: AAC, SBCSCMS-T ProtectionUSB-C charging interfaceBluetoth Multipoint Multipoint access Use each only independently of the headphones MonomodeGoogle Fast Pair (Android Devices)Application: Sony Headphones ConnectWeight: 4.6 g /headphone ; 31 g /case Buying a used product is an environmentally friendly choice!Our products are subject to a 14-day return policy under the Consumer Protection Act.