Batteries : 3 Lithium ion batteries required. (included) Product Dimensions : 4.2 x 2.4 x 2.1 cm; 9 Grams Date First Available : 26 Aug. 2020 Manufacturer : Jays ASIN : B08GLXH4CK Item model number : f-five True Wireless 4.5 HRS PLAYTIME: From London to Paris on one single charge. When you are done, place the earbuds in the charging case (total 16 hours battery life) to keep them powered up and protected. WIRELESS: No cable and equipped with touch controls on both ear pieces make your daily listening easier than ever. Control your track list, volume and phone calls by a single touch on your ear. GREAT FIT: Move free and smoothly – The earbuds are engineered to be not only comfortable and secure in your ears, but also super light with a weight of only 8.7 grams. FIRST-CLASS TALKS: A lot of effort was put into the development of the f-five’s microphone. Equipped with a top-of-the-line microphone for crystal-clear conversations. COMPATIBLE WITH: Bluetooth 5.0 – The Jays f-five are compatible with all iOS & Android devices (e.g. Apple iPhone & iPad, Samsung & Huawei). Make quick voice commands with Siri and Google Now.