Features:Flying bird design, intelligent touch control, convenient operation, 3.7g comfortable wearingMaster-slave switch, solved the problem of tedious and disconnected switching of single and double ears of true wireless headphonesSupport game mode, music mode, call mode, voice assistantDSP intelligent noise reduction, filter noise, anti-interference, high-definition sound qualitybluetooth 5.0 true wireless, 3 times faster response, faster and more stable, delay reduced by 60%2200mAh large capacity battery, can charge phones, provide 60 hours long battery lifeIntelligent real-time power display, high-sensitivity Hall switch control, open the top of the charging dock, you can easily check the remaining power IPX5 all-round water-resistant and sweat-proof design, outstanding appearance, meanwhile have certain anti-drop performanceSpecifications:General Specification Haylou (Xiaomi Eco-System) Model T15 Color Black Wearing Type In-ear Material ABS+PC Net Weight (g) 37g Dimensions 2.19 x 2.16 x 1.78 cm / 0.86 x 0.85 x 0.7 inches Technical Parameters Microphone Yes bluetooth Version V5.0 Transmission Distance 10m bluetooth protocol A2DP,AVRCP,HEP v1.6,HSP Battery Capacity Charging box: 2200mAh, 3.7VEarphone: 43mAh*2, 3.7V Charging Time (h) 1.5 hours for earphone, 4 hours for charging box Talking Time 100hPackage Included:1* Haylou T15 TWS bluetooth 5.0 Earphone with Charging Box 1* USB Charging Cable 1* English Manual