HBH-IV840 Features

Last Number re-dial

Keep your phone in your pocket and double-click the key on your Bluetooth™ headset to call the number you last dialled. Get in touch quickly and easily.

The Bluetooth™ experience

Bluetooth™ wireless technology frees more than your hands – it lets your devices talk to each other without tangles, across ranges of up to 10 metres.

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Compatibility

All Sony Ericsson wireless devices have been developed in coordination with Sony Ericsson mobile phones, but are also compatible with Bluetooth™-equipped handsets from other manufacturers.

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Adaptive Frequency Hopping (AFH)

AFH reduces the impact of interference between wireless technologies, resulting in excellent audio quality.

Style in mind

Sony Ericsson accessories are designed for the modern consumer to ensure the best technology looks good, too.

Auto pairing™

A feature that makes pairing the device with your Bluetooth™ mobile phone faster and simpler by dropping the PIN code without compromising security.

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Automatic volume adjustment

Walk into a noisy environment and the volume adjusts automatically in less than a second.

Digital Signal Processing

Enhanced audio quality is achieved through Digital Signal Processing (DSP) technology, including compression and echo cancellation.

Enhanced Data Rate

Much faster transmission speed, lower power consumption and greater bandwidth. What this means is less interruptions and better battery performance.