1.Wireless headsets base & headband & handset lifter 2.Handset Lifter enables remote call answering 3.Noise-canceling micropho

  Wireless headsets base & headband&handset lifter &earhook , 2.4Ghz  standard cordless technology

Operating Range: 50m indoors/ 100m outdoorsOut of range warning & low battery warningReceive tone & transmit volume controlNoise cancelling microphoneTalk button, Mute, Volume control & In-Use indicatorIntelliStand function (requires HL 10 lifter)Talk time: Up to 6 hours / Standby time: Up to 28 hoursCharge time: 1.5 hours (80%) or 3 hours (100%)Headset weight: 21 GramsIncludes wireless noise cancelling ear-mounted headset, rechargable Lithium-Ion Polymer battery & extra eartips

Key Features:

Including wireless telephone (main part) & wireless headset Auto lift installation to enable answering from headset button...ect.Applicable all telephone system by adjusting built in selectorWireless connection distance:100MCalling time: 6hStandby time:10 h2.4GHz wide band RF module for Analogue cordless headsetTx frequency :2405 +/- 5 MHz(base) 40kHz Step2475 +/- 5MHz (h/s) 40kHzRx frequency :(base station) same with handset Tx(handset) same with base station TxChannel number:Max 40 ChannelChannel separation: 250kHzStandard test modulation:Modulation frequency: 1kHzStandard deviation: 30kHzNormal power supply voltage:Base: 5.0V DCHandset: 3.3 to 3.8V DCPower supply voltage range:Base: 5.0 to 5.2V DCHandset: 3.3 to 3.8V DCAntenna impedance 50

Wireless headsets base & headband&handset lifter &earhook