Product details of M90 Pro Earbuds Tws Earphone Touch Control Wireless Bluetooth 5.2 - Bluetooth Headphone - ব্লটুথ হেডফোনProduct details of M90 Pro Earbuds TWS Earphone Touch Control Wireless Bluetooth 5.2TWS M90 pro Clear & Stereo SoundHiFi Bass ENC (Environmental Noise Cancellation)Wireless Version : 5.3 EffectiveDistance : 10-15M Frequency : 100HZ - 10KHZ CaseBattery Capacity : 1200 MaHEarbuds Battery Capacity : 40 MaH Music Time : 4 Hours Talk Time : 4/5 Hours Standby Time : 150 Hours Charging Time : 1-2 Hours Shutdown Current : 3-5 UA