Bluetooth Wireless Verson: 4.1 Standby Time: about 200h Charging Time: about 2.5h Talk Time: about 10h Weight: 15g Operative range: up to 30feet(10meters) Yincine Y16 Sports Wireless Bluetooth headset that ismade out of high quality material, Sportishand light-weight with access to all buttons.Sweatproof design, Socking Sound Quality which is suitable for sports. It would not slide down even during intense workrout. It compactable for all brand iphone, samsung, nokia, htc, huawei, oppo, vivo xiaomi having bluetooth verson 4.1 Brand No Brand SKU 100219540_NP-1020472642 connector_1 3.5MM Bluetooth Yes Wearing type In-Ear wireless_connectivity Bluetooth Model Y16