Wide compatibility:1. Compatible with iPhone and Android smartphones, and also supports Bluetooth devices such as smartphones, iPads and laptops.2. Compatible with iPhone / Samsung / Huawei / OPPO / VIVO / Xiaomi smartphones.Note: If the headphones are not paired, insert both earbuds into the charging case until the LED lights on both ears listen to the flashing, then remove them to use. (Both headphones will automatically power on and pair automatically)