By talking directly into your glove you don't have to get your phone out of your pocket or have cold hands. Finger gloves with built-in Bluetooth, microphone and speaker. The left glove has a built-in speaker and microphone in the index finger and wrist, multifunction button and LED indicator. 3 of the fingers have conductive surfaces for touch screens on smartphones, tablets, etc. 12 m range, 10 hours talk time, 8-10 days standby time. Built-in rechargeable battery. USB charger lead included. Compatible with all modern Bluetooth phones. One size fits all.