Totu BT-2 - LED Status Indicators; Technical Specifications

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4.ThebatterylifeontheBT‐2willvarydependingonthedeviceyouareusing.Somedevicesdraw

significantlymorepowerthanothers.Inparticular,usingtheBT‐2withaVoIPapplicationsuchas

Skypewilldrainthebatterymorequickly.

5.MakesuretheBT‐2isfullychargedbefore

usingitforthefirsttime.

6.Repeatedcharginganddischargingoftheheadsetovertimewillcausethebatteryperformance

todiminish.Thisisnormalforallrechargeablebatteries.

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Procedure:

1.PlugthesuppliedUSBcableintoaspareUSBsocketonyourcomputerorattachittoyourAC

adapter.

2.

ThenplugtheotherendoftheUSBcableintoyourheadphones.

3.Duringcharging,theindicatorlightwillturnred.Ifchargingdoesnotbegin,unplugthetravel

adapterandplugitinagain.

4.Whentheheadsetisfullycharged,theredindicatorlightchangestoblue.DisconnecttheAC

adapterandUSBcable.



LEDStatus

RedLight=Charging

BlueLight=Fullycharged

BlinkingRedLight=Under15minutesofplaybackremaining

BlinkingBlueLight=Normaluse

BlinkingBlue/RedLight=Paring

Note:Somesmartdevicesprovideadditionalbatterystatusfeedbackviaanon‐screenicon.



TechnicalSpecification



Mylarthickness

titaniumdiaphragm6μ

Impedance

16Ω±20%(DCR)

Ratinginputpower 3mW

Maximuminputpower 5mW

OutputS.P.L(Sensitivity)

104±4dBat1KHzwith126mVrmsinput

R/Loutputdifference <3dBat1kHz1mW

Distortion

≤5%at1kHz/inputVoltage=126mV

Frequencyresponse 20~22,000Hz

Buzzes&rattles Mustbenormalatsinwave0.283v(50‐20000ha)

Workingvoltage <10V

Currentconsumption <0.5mA

Signal/noiseratio >60dB

Bluetoothversion 4.1

Weight

13.0g±2g

Operatingrange Upto33feet(10meters)