1.Bluetooth version:V2.1+EDR(A2DP) 2.Battery:3.7V/500MAH 3.Using for meeting,travelling,relaxing Portable Bluetooth Speaker Doss MINI DS-1168 Suitable for phone and tablet pc & computer1.Bluetooth version:V2.1+EDR(A2DP)2.Battery:3.7V/500MAH3.Using for meeting,travelling and so on Feature1. Special Doss voice prompt,calling answer,voice notice phone number.2. Military technology shell,Alloy steel, ...