Trekstor i.Beat swap. Image formats supported: BMP, Audio formats supported: MP3, WAV, WMA. MP3 bit rates: 32 - 320 Kbit/s, WMA bit rates: 32 - 320 Kbit/s, Signal-to-Noise Ratio (SNR): 80 dB. Display diagonal: 45.7 mm (1.8 "), Display resolution: 120 x 160 pixels. Width: 42.1 mm, Depth: 84.3 mm, Height: 9.1 mm. Battery life (max): 13 h, Battery technology: Lithium-Ion (Li-Ion), Data transfer rate: 4.3 Mbit/s