Bluetooth™ Headset HBH-GV435 – Clear digital sound and lasting comfort. If you have a working day filled with phone calls, this is the ultimate Bluetooth™ headset. Whether you are in a busy office or a loud factory, this headset makes sure that you can hear your caller loud and clear – and that you can be heard too. Digital Signal Processing (DSP) makes the sound crisper and clearer, fast automatic volume adjustment quickly changes the volume depending on the situation, while Bluetooth™ 2.0 guarantees the best and most stable link to your phone possible. The new discreet design hides snugly around your ear without a visible boom.