I bought the BLT-04 case to use with the Motorola H700 headset.  It fits the headset very nicely, but..  But, the design of the case does not prevent the  multifunction button from being pushed if the case is at all squeezed, even though there is a recess in the case cover you'd think would prevent that.  The result is that I'd often find the pairing light on and the battery close to drained.