... portable mini speaker 1.Li-ion battery mini speaker 2.link to mobile phone,MP3,MP4, ... Input:3.7V~4.2V+0.05V Lithium battery capacity:200mAhSpeaker Unit:36mmCase Material:ABSDimensions:Dia52mmXH4.2mmWeight ... :51gColor:Blue, Silver,RedBlack,Pink,Red Li-ion battery mini speakerFunction: (1) Can play music by ... devices, if you devices have 3.5mm socket. (2) Suitable for Promotion, Gift, Store for sell. Pocket ...