Built-in bluetooth 4.0 + EDR technology Built-in high quality microphone with music / voice control / call function Tomo control – selection of songs, adjustment of volume, play, stop etc. Specification · bluetooth version: 4.0 + EDR · frequency range: 2.4026 GHz -2.480 GHz · Transmission distance: Approximately 10 m (? It varies depending on surrounding environment and smart bluetooth etc.) · Microphone distance: ? 1 meter · Lithium battery: 3.7 V / 150 mA · Charging time: 1 hour · Standby time: Approximately 160 Time · Continuous running time: Approximately 8 hours Package contents · LeaningTech MH 01 bicycle helmet earphone · English manual (Japanese manual does not exist.
