17
Battery ……………………………..........built-in rechargeable li-ion battery
Standby time…………………………………...………….….over 240 hours
Charging time……………………………………………………2.5 to 3 hours
Connectivity…………………………………USB (Mini-B) cable built-in port
Transmitted frequency…………………………………………2.4GHz, GFSK
Original accessories ……………………………USB cable for the charger, user
manual
，
charger with USB
port
Optional accessory……………………..............................................car charger
Optional functions………………FM radio function/bone conduction telephone
transmitter function
Operating/storing temperature range ……………………..-10
℃
to 50
℃
(-4
℉
to
122
℉
);5
％
to 90
％
relative humidity
Charging temperature range…………………………0
℃
to 40
℃
(32
℉
to 104
℉
)
