Powero+ Stripes True Wireless Earbuds PR-STBT2456 SPECIFICATIONS: HiFi Sound Quality Touch Sensor Ergonomic Design Light-Weight Transmission Distance : 10m Sensitivity : 103dB Frequency Range : 20Hz-20KHz Support Protocol : SBC, MP2, MP3, WMA, APE, FLAC, AAC, MA4, M4A, WAV, AIF, AIFC Speaker : 13mm Copper Ring Composite Membrane Earphone Capacity : 28mAh Charging Case Capacity : 280mAh Input : 5V 1A Battery Case Charging Time : 1.5 hours Earbuds Playing Time : Upto 3H (70% volume) Playtime with a charging case : About 16 hrs Standby Time : 100 days