Bluetooth Version: V5.3 Chipset:JL 6983D Profile:A2DP, AVCTP, AVDTP, AVRCP, HFP, SPP, SMP, ATT, GAPG ATT, RFCOMM, SDP, l2CAP Bluetooth Distance:10m Impedence:32ohm Frequency Range:20-20Khz IPX level:N/A Sensitivity: 105+/-3DB Battery: 220MAH for charging box/30mah for earbuds Driver Size:13MM Charging port type: Type-C Charging Time: 2 HRS Playtime(50% volume ):10 HRS Playtime(100%volume):8 HRS Accessories: Charging cable Material: ABS Features(Yes or no) With Mic: Yes Mic Sensitivity : MIC 42±3dB FM radio: no Support Google or Siri: Yes TF Card: no Aux input: no