Mp3 Wma & Wav Format Built-in 1.33'' X 0.39'' LCD Display With Track & Id3 Song Information 3 M Water Depth For 3 Hours--meets Ipx8 Rating Of Waterproof Certified For Both Music Player & Earphones Caluclates Distance Time Steps Taken & Calories Consumed Lap Counter Calculates Laps & Time Universal Back Clip Design Fits On Swimming & Skiing Goggle Belt & Collar Includes 2 Sets Of Waterproof Earbuds Dim: 1.96''h X 5.90''w X 7.48''d Unit Weight: 0.46lbs