If you don't like headsets, then IOGEAR's catchily named GBHFK201W6 could be the hands-free speaker for you.
Suitable for use in the home, office, or on the road, it can be used with any Bluetooth mobile phone and could also be used for VoIP calls from a Bluetooth-enabled PC.
To use this in the car, simply mount the unit on the car visor using the supplied clip and start talking. For home and office just place it anywhere nearby and start talking.
It boasts a long-life rechargeable battery for eight hours continuous talk time or standby time of up to 150 hours, easy-to-reach controls and hassle-free configuration.
Supporting both headset and hands-free profiles, this claims to have superior noise cancellation, digital echo cancellation and background noise reduction for clearer conversations.
The IOGEAR GBHFK201W6 Portable Bluetooth Speakerphone is £69.99