We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.
The newly revealed ZTE Wombat is a basic phone model featuring a QWERTY keyboard and a rear-facing 2MP camera. It is not a smartphone, but useful for utilitarian needs. It will be carried by T-Mobile and offers WCDMA in the 1700MHz band, Bluetooth support for GSM/EDGE in 850/1900MHz bands.
Bluetooth Support for GSM/EDGE 850/1900MHz Bands