Detailed Product Description Model: watch mobile phones M810 Specifications Frequency Tri-band 900 / 1800 / ... MP4,support to play in full screen, speed and pause Memory 505 Mb, support to extend Data transfer data wire /U disc / Bluetooth ... Handsfree, Voice recorder, Handwritten input, Bluetooth, MMS, tri-band watch phone, vibrating when calls coming, camera, memory card expansion, IP dialing, ...