Long known for audio innovation, Sennheiser once again delivers with the IE 100 Pro in-ear monitors. Available in black, red, or clear, the 100 Pro employs a unique 10-mm single dynamic driver design to deliver powerful audio across an expanded frequency range. Plus, this wireless version is a two-in-one bundle that includes a standard cable for wired use and a Bluetooth module for wireless connection. The wireless module also has a built-in microphone and remote for call and music control.The single diaphragm resonates more easily than multi-driver designs, eliminating distortions even at maximum levels. The harmonious operation of this design also removes dissonances and phase problems in the ear canal. In short, you hear the source as intended.Musicians, audio engineers, and DJs who are used to long sessions will appreciate Sennheiser's dirve to create a more universal fit. Tested against hundreds of ear shapes, the redesigned drivers sit flat, secure, and carry no weight. This means no constant repositioning to get the sound and feel you want.Sennheiser knows audio professionals need gear that responds day in and day out. The 100 Pro has a redesigned internal cable duct that can withstand the demands placed on it by constant use. And if the cables wear out it's not a problem because you can remove and replace them.Stunning sound for stage or on the go, the IE 100 Pro.Sennheiser IE100-PRO-W Includes:IE 100 PRO (BLACK, CLEAR or RED)Bluetooth connectorBlack cable for IE 100 PROUSB-A to USB-C cableSoft pouchCleaning toolFoam and silicone ear adaptersQuick guideSafety guideCompliance sheetSennheiser IE100-PRO-W Features:Dynamic full-range transducer for high-resolution,powerful monitoring soundReduces acoustic stress factors through natural anddistortion-free reproduction2 in 1 bundle: Bluetooth® module for wireless connectionto mobile devices, PCs or tablets, with a built-inmicrophone for calls or standard 3,5 mm jack-plugcableExcellent shielding through optimized earpiece shapeand flexible silicone and foam attachmentsSennheiser IE100-PRO-W Specifications:Frequency response: 20 - 18,000 HzImpedance: 20 ΩSound pressure level (SPL): 115 dB (1 kHz / 1 Vrms)Total harmonic distortion (THD):< 0.1 % (1 kHz, 94 dB)Noise attenuation:< 26 dBMagnetized field strength: 1.63 mTOperating temperature: –5 °C to +50 °C (23 °F to 122 °F)Storage temperature: –20 °C to +70 °C (–4 °F to 158 °F)Relative humidity:< 95 %Bluetooth® ConnectorWearing style Bluetooth® neckband cableMicrophone principle MEMSMicrophone frequency response: 100 - 8,000 HzMicrophone sensitivity: -42 dBV/Pa (ITU-T P.79)Microphone pick-up pattern (speech audio): omni-directionalPower supplyBuilt-in rechargeable lithiumpolymer battery3.7 V ⎓, 100 mAhUSB charging 5 V ⎓, 100 mA max.Operating time: 10 h (music playback via SBC) with rechargeable battery; 240 h in standby modeCharging time of rechargeable batteries: approx. 2.5 hOperating temperature: +5 °C to +40 °C ± 5 °C (41 °F to 104 °F ± 9 °F)Charging temperature: +10 °C to +40 °C ± 5 °C (50 °F to 104 °F ± 9 °F)Storage temperature: –20 °C to +70 °C (–4 °F to 158 °F)Relative humidityOperation: 10 - 80 %, non-condensingStorage: 10 - 90 %Magnetized field strength: 1.63 mT (with IE 100 PRO) 0.23 mT (withoutheadphone)Weight approx.: 13 gBluetooth®Version Bluetooth 5.0 compatible, class 1, BLETransmission frequency 2,402 - 2,480 MHzModulation: GFSK, π/4 DQPSK, 8DPSKProfiles: HSP, HFP, AVRCP, A2DPOutput power: 10 mW (max)Codec: SBC, aptX®, aptX LL®, AACThe Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of suchmarks by Sennheiser electronic GmbH & Co. KG is under Sennheiser IE100-PRO-W Wireless In-ear Monitoring Headphones - Black.