Murmur allows voice calls between groups of Bluetooth LE capable devices.

Multiple connections between devices create a mesh network, allowing group voice calling and messages for up to 16 participants.

The network allows signals to be relayed between devices, allowing the range to far exceed that of a single Bluetooth connection when used in a group.

Murmur supports Bluetooth hands-free kits, making it ideal for cyclists, skiers, climbers, hikers or any group activity taking place without reliable cell-tower reception.