Lambent Mini Wireless Bluetooth Headset with Mic for All Latest Smartphone(Black) Colour:Kaju Black   Mini S530 Stereo Bluetooth 4.1 Headset Earphone Earbud for Bluetooth Devices Compatible with Xiaomi Mi, Apple, Samsung, Sony, Lenovo, Oppo, Vivo Smartphones Specifications: Transmission range: 8m Bluetooth version: V4.0 Bluetooth profiles: Hands-free / Headset Radio frequency: 2.402-2.480GHz Support A2DP Music playback (audio output: 35mW, Play / Pause) Talk time: 4 hours talk time (music playback three hours / standby time 120 hours / working current 15mA) Charging Power: AC input 110-240V DC output 5V (charging time / about 2 hours / charging voltage 3.7V) Battery type 50mA rechargeable lithium battery  # 1 year warranty on manufacture Defect.