FeaturesiOS / Android compatibleBattery life: up to 17 hoursMicrophone / remote controlBass boost function for dynamic bass soundFlat foldable designDesigned with simplicity in mind and to reflect a sleek and modern style. The JVC HA-S31BT Wireless Bluetooth On-Ear Headphones offer 17-hours of wireless listening, and bass boost for high clarity and deep bass sound. The flat foldable design and swivelling ear pads, mean these headphones will keep you entertained on the move and will fit nicely in your bag when not in use. The compact design does not compromise on sound quality and with smartphones voice assistant compatibility, integrated mic and remote, your flexible friend for hands free operation. The HA-S31BT are available in three colours – slate blue, carbon black and ice white.On-ear wireless casual headphonesLightweight wireless headphones for daily casual use. Up to 17 hours of wireless listening is available from the large capacity integrated rechargeable battery. With this in mind, comfortable soft ear pads are included for long music listening.Flat foldable swivel design with voice-assistant compatibilityVoice-assistant compatibility allows easy voice control of compatible smart phones. The Flat Foldable swivel design makes the headphones compact and easy to store in your bag when travelling.