1) accord with bluetooth 's standard
2) support handset andhand sfree profile
3) beam power: class 2
4) spectrum of wirless link: 10m
5) spectrun of operate frequence: 2. 402ghz---2. 480ghz
6) built-in lithium battery, low power consuming, could play for 6 hours continually.
7) communicate time: 4-5 hours, standby time: 2-3 hours
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