Bluetooth / Intercom with a 450 Feet Range / DSP Processor / Full duiples / Waterproof / Up to 7 Hours Talk, 700 Hour Standby Time / 2.4GHz Wireless # Now you can ride your motorcycle while you talk over your CellPhone or talk to your passenger. You can even talk to another motorcycle rider within 450 feet range. Wireless, water-resistant and windproof, the BlueAnt Interphone Handsfree & Intercom can be used at up to 80mph and compatible with all Bluetooth Cell Phones. Includes: High Power ultra slim speaker with Integrated Microphone boom, Two helmet mounting clips (clamp type and permanent type) & Wall Charger # Full Duplex # Full DSP Noise Cancellation / Echo Cancellation # Automatic Volume Adjustment depending on ambient noise and speed level # Intercom Mode # Easy to find Volume / Multi-Function buttons # Digital Volume Control # Voice Recognition Dialing (If phone supports) # Answer or reject incoming calls by voice control # Water Resistant # Aerodynamic and Compact Shape # Easy to install, compatible with most common helmets # Main unit detachable from helmet mounting clip # Bluetooth Compliance: Bluetooth Version 1.2 Specifications # Operating Range: Up to 33 feet (10m) for cell phones, up to 490 feet (150m) for two Interphones # Frequency: 2.4GHz # Talk Time: Up to 10 hours # Standby Time: Up to 700 hours # Charging Time: 4 hours # Rechargeable Lithium Polymer 350mAh Battery # Dimensions: 87x43x23mm # Weight: 35 grams excluding accessories