Specs Philips GoGear MP3 player SA3SPK04W/93 MP3/MP4 Players (SA3SPK04W/93)
Battery for Philips GoGear Spark Player New Li Polymer Polymer Rechargeable Accumulator Pack Replacement [332531] 3.7V 220mAh|Digital Batteries| - AliExpress
Philips GoGear: Luxe, Spark, and Raga - CNET
Philips GoGear Spark gets reviewed: a diamond in the rough | Engadget