General Specification Brand Name Xiaomi Model Number LYEJ02LM Optional Color Black, White Wearing Type In-ear Net Weight (g) 6.5g Product Dimensions 5.7cm*1.1cm*2.4cm Technical Parameters Microphone Yes Bluetooth Version V4.1 Bluetooth Protocol HFP/HSP/A2DP/AVRCP Bluetooth Chip CSR8610 Transmission Distance 10m Charging Voltage 5V 200mA Battery Capacity 50mAh Charging Time (h) 2 hours Taking Time 3.5 hours Standby Time (h) 70 hours Function Switching songs, adjust volume, reject, pause/play music, end/answer call, redial, multi-points, noise canceling Package Included: Original Xiaomi Youth Version Mini Light Wireless Bluetooth Earphone Headphone 1 X Original Xiaomi Youth Version Bluetooth Version 3 X Earbuds (L, M, S) 1 X Charging Cable 1 X Manual Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.