USA 
PXC 550-II Wireless Active Noise-Canceling Over-Ear Headphones
Product Description
Designed for all-day use, the PXC 550-II Wireless Active Noise-Canceling Over-Ear Headphones from Sennheiser provide you with up to 30 hours of battery life, padded earcups and headband, and easy access to your smartphone. The PXC 550-II headphones have an integrated voice assistant button that connects you to your phone's digital assistant, such as Google Assistant, Siri, or Alexa. Once connected, a beamforming 3-microphone array helps to focus onto your voice for clearer commands, questions, and hands-free conversations.
Featuring active noise-canceling technology, the PXC 550-II headphones will filter out ambient noises and sounds that can distract you from your favorite music or an important conversation. The degree of noise cancellation can be customized via the Sennheiser Smart Control app for iOS and Android devices, so you can tone it down or activate Transparent Hearing to get back in touch with your surroundings when needed. The Smart Control app also features a built-in equalizer to optimize sound quality for your audio content.
Featuring active noise-canceling technology, the PXC 550-II headphones will filter out ambient noises and sounds that can distract you from your favorite music or an important conversation. The degree of noise cancellation can be customized via the Sennheiser Smart Control app for iOS and Android devices, so you can tone it down or activate Transparent Hearing to get back in touch with your surroundings when needed. The Smart Control app also features a built-in equalizer to optimize sound quality for your audio content.
| Item Type | |
| Number of Included Headphones/Receivers | |
| Number of Included Transmitters | |
| Number of Included Headsets | |
| Number of Included Transceivers | |
| Headphone | |
| Earpiece Design | Over-Ear (Circumaural) |
| Earpiece Swivel | |
| Earpiece Connection / Wearing Style | Headband |
| Foldable | Yes |
| Number of Earpieces | |
| Sound Field | |
| Earpad Size | |
| Driver Type | Dynamic |
| Number of Drivers | 1, per Earpiece |
| Driver Size | 1.26" / 32 mm |
| Diaphragm | |
| Magnet Type | |
| Voice Coil | |
| Impedance | 490 Ohms (Active) 46 Ohms (Passive) |
| Active Noise Cancellation | Yes |
| Controls/Microphone Location | Controls: Earpiece (Side Unspecified) Microphone: Earpiece (Side Unspecified) |
| Full Remote OS Support | Not Specified by Manufacturer |
| Sensors | |
| Contact Pressure | |
| Performance | |
| Frequency Response | 17 Hz to 23,000 Hz |
| Resonant Frequency | |
| Sensitivity | 110 dB SPL at 1 kHz / 1 Vrms |
| Matching Tolerance | |
| Maximum Sound Pressure Level (SPL) | |
| Maximum Power Handling | |
| Functional Bias Voltage | |
| Electrostatic Capacitance | |
| Output Power | |
| Volume Limiting | |
| Noise Attenuation | |
| Total Harmonic Distortion (THD) | 0.5% |
| SNR | |
| CMRR | |
| Channel Separation | |
| Storage Capacity | |
| Microphone | |
| Number of Mics | 3 |
| Beamforming Support | Yes |
| Type | MEMS |
| Diaphragm Size | |
| Mic Boom Location | |
| Pickup Pattern | |
| Noise Canceling | |
| Frequency Response | 50 Hz to 10,000 Hz |
| Operating Voltage | |
| Sensitivity | -34 dBV/Pa |
| Maximum SPL | |
| Impedance | |
| SNR | |
| Distortion | |
| Equivalent Noise Level | |
| Wireless Connectivity | |
| Wireless Transmission | |
| Number of RF Channels | |
| RF Bandwidth | |
| Max Systems per Setup | |
| Wireless Modulation | π/4 DQPSK, 8DPSK, GFSK |
| DECT Standard | |
| Duplex Mode | |
| RF Channel Access Method | |
| Latency | |
| Speech Encoding | |
| Transmission Speed | |
| Approximate RF Sensitivity | |
| Supported Audio Codecs | AAC, SBC, aptX, aptX LL |
| Bluetooth Profiles | |
| Bluetooth | 5.0 |
| Bluetooth Power Class | |
| Wireless Range | |
| Frequency | 2.4 GHz (2400 to 2483.5 MHz) |
| Transmitter Power | |
| Multipoint Support | |
| Maximum Paired Devices | |
| NFC | None |
| Wireless Chipset | |
| True Wireless Pairing Method | |
| Transmitter Host Connection | |
| Encryption | |
| Wired Connectivity | |
| Audio Connector to Source | 1/8" / 3.5 mm TRRS |
| Connector Plating | |
| Adapter (Included) | |
| Cable Design | |
| Audio Connector to Earpiece | 2.5 mm TRRS |
| Cable Length | |
| Cable Length | |
| Cable Color | |
| Cable Conductor Material | |
| Battery | |
| Battery Type | |
| Battery Type | |
| Battery Chemistry | Lithium-Ion |
| Battery Chemistry | |
| Capacity (mAh) | 330 mAh |
| Runtime | 30 Hours (ANC) 20 Hours (BT+ANC) |
| Runtime | |
| Quick Charging Times | |
| Recharge Time | 3 Hours |
| DC Input Power | 5 VDC |
| Wireless Charging | |
| Charging Port | Micro-USB |
| Charging Cable Length | |
| Number of Channels | |
| Users per System | |
| I/O Connectors | |
| Antenna | |
| Audio Decoding | |
| Number of Charging Ports | |
| AC/DC Power Adapter | |
| AC Input Power | |
| Power Consumption | |
| Charging Case | |
| Additional Runtime | |
| Battery Chemistry | |
| Capacity | |
| Charging Time | |
| Charging Interface | |
| Compatibility | |
| Platform Support | |
| OS Compatibility | |
| Required Hardware | |
| Internet Connection | |
| Environmental | |
| Charging Temperature | |
| Operating Temperature | 32 to 131°F / 0 to 55°C |
| Storage Temperature | |
| Operating Humidity | 10 to 80% |
| Storage Humidity | |
| Certifications | |
| Physical | |
| Color | |
| Water Resistance | |
| IP Rating | |
| LED Indicator | Yes |
| Material of Construction | |
| Dimensions | 6.85 x 5.35 x 2.48" / 174 x 136 x 63 mm (Open) |
| Weight | Headphones: 8 oz / 227 g |
| Warranty Length | Limited 2-Year Warranty |