this is a portable blutooth speker. ye speker bahut hi badhiya condition me he . or sirf ye speker ko liye huye mujhe sirf 3 mahine hi huye he mene isko bahut kam ho chalaya he isliye isme dhup jam gayi he to isiliye ye thoda purana lag raha he .or iska battery backup sabse badhiya he 2 ghante me pura charge ho jata he or 6 ghante tak aaraam se chalta he . mere pass bade home theatre aa gaye he isliye me isko bech raha hu nahi to me bhi isko nahi bechta isme normal speker nahi subwoofer laga hua he jo awaaz ko ekdam clear or bass wala banata he bahut badhiya he .