... x 103 x 22.5mm Weight: 146g 5v portable power pack for moblie phone, MP3/4/PDA etc2000mah lithium rechargeable ... Quick charge, easy to carry, 50pcs MOQ.5v portable power pack for moblie phone, MP3/4/PDA etc4400mah lithium rechargeable batteryAluminum ... Battery Type: Lithium Polymer Rechargeable Battery.5. Color available, Silver, black, blue, pink and yellow.6. Output voltage/current: 5.5V ...