Due for release next month, this combines a digital music player with a Bluetooth headset for a mobile phone. When a call comes through to the mobile, the music pauses and the display changes from song details to caller ID. If a favourite song happens to be playing at the time, the user can choose to ignore the call. A 64MB MagicGate Memory Stick Duo stores up to 30 tracks (using ATRAC3 and MP3 formats) while a radio tuner is also included. The Bluetooth connection detects calls up to 10m away from the phone. The HBM-30 will be available through Sony Ericsson.