The UC03 communication system is designed to provide a safe method of rider to pillion communication intercoms, whilst also allowing you to control your smartphone hands free, through Siri or other virtual assistants. In addition to the hands free function you can also simultaneously add another sound emitting Bluetooth device, enabling you to listen to GPS and audio at the same time. The all new LED function indicator makes using the device on the road easy and safe. Designed to be completely integrated in your helmet. Intercom between devices. Two speakers for stereo audio & GPS at the same time. Works with all Bluetooth devices, GPS / Phones / MP3 players. Dual link functionality: in addition to the phone function you can simultaneously add another sound emitting Bluetooth device. LED function indicator. Glove friendly and universal for jet, full face, flip-up & trail helmets. Talk time: 7 hours. Standby time: 60 hours. Charging time: 2 hours. Frequency: 2.4 GHz. Range: 10 metres. Weight: 38 grams Battery Lithium 110 mAh