MP3 players fulfill many roles for the people who use them. For some, a portable audio device is true to form as an essential commuter companion; others turn their players into home audio systems by attaching them to speakers. But one of the most popular uses for an MP3 player is as a workout motivator, which is why companies have packed fitness-friendly extras into the devices over the years. The most recent example is found in the Haier America Trainer, a 2GB player with a surfeit of features aimed at getting you in shape. At $60, the Trainer is a solid investment for gym rats who want to get the absolute most out of an MP3 player.
Like any good fitness-friendly MP3 player, the Trainer is supersmall, light, and durable. It also features a built-in belt clip so you can attach it to your clothes during workouts. The unit is constructed of sweat-resistant plastic that's decked out in muted blue, gray, and black. A small, monochrome LCD on the front is flanked by a navigation button, dedicated volume controls, playback keys (play/pause and track forward/reverse), and a heart rate sensor. Around the edges of the device, you'll find a power/hold switch, a standard USB port, a menu button, and a 3.5mm headphone jack.