USA 
CX 350BT Wireless In-Ear Headphones (Black)
Product Description
Take control of your wireless audio with the CX 350BT Wireless In-Ear Headphones from Sennheiser. These headphones work with Bluetooth-compatible devices, but are ideal for smartphones, with support for digital assistants and built-in mics for hands-free calling. An inline remote and Smart Control App give you control over music playback, incoming calls, voice commands, and sound quality. With support for the aptX Low Latency codec, that sound quality is engineered to be consistent, high quality, and in sync with gaming and streaming media.
| Item Type | |
| Number of Included Headphones/Receivers | |
| Number of Included Transmitters | |
| Number of Included Headsets | |
| Number of Included Transceivers | |
| Headphone | |
| Earpiece Design | In-Ear (Intra-Aural) |
| Earpiece Swivel | |
| Earpiece Connection / Wearing Style | Wired |
| Foldable | No |
| Number of Earpieces | |
| Sound Field | |
| Earpad Size | |
| Driver Type | Dynamic |
| Number of Drivers | |
| Driver Size | |
| Diaphragm | |
| Magnet Type | |
| Voice Coil | |
| Impedance | 28 Ohms |
| Active Noise Cancellation | No |
| Controls/Microphone Location | Controls: Cable Microphone: Cable |
| Full Remote OS Support | Android, iOS |
| Sensors | |
| Contact Pressure | |
| Performance | |
| Frequency Response | 17 Hz to 20 kHz (Wireless) |
| Resonant Frequency | |
| Sensitivity | |
| Matching Tolerance | |
| Maximum Sound Pressure Level (SPL) | 110 dB at 1 kHz |
| 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 | |
| Beamforming Support | No |
| Type | MEMS |
| Diaphragm Size | |
| Mic Boom Location | |
| Pickup Pattern | Omnidirectional |
| Noise Canceling | |
| Frequency Response | |
| Operating Voltage | |
| Sensitivity | |
| Maximum SPL | |
| Impedance | |
| SNR | |
| Distortion | |
| Equivalent Noise Level | |
| Wireless Connectivity | |
| Wireless Transmission | |
| Number of RF Channels | |
| RF Bandwidth | |
| Max Systems per Setup | |
| Wireless Modulation | |
| 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 | |
| Transmitter Power | |
| Multipoint Support | Yes |
| Maximum Paired Devices | 2 |
| NFC | No |
| Wireless Chipset | |
| True Wireless Pairing Method | |
| Transmitter Host Connection | |
| Encryption | |
| Audio Connector to Source | |
| Connector Plating | |
| Adapter (Included) | |
| Cable Design | |
| Audio Connector to Earpiece | |
| Cable Length | |
| Cable Length | |
| Cable Color | |
| Cable Conductor Material | |
| Battery | |
| Battery Type | |
| Battery Type | |
| Battery Chemistry | |
| Battery Chemistry | |
| Capacity (mAh) | |
| Runtime | 10 Hours (BT) |
| Runtime | |
| Quick Charging Times | |
| Recharge Time | |
| DC Input Power | |
| Wireless Charging | |
| Charging Port | USB Type-C |
| 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 | |
| Additional Runtime | |
| Battery Chemistry | |
| Capacity | |
| Charging Time | |
| Charging Interface | |
| Platform Support | |
| OS Compatibility | |
| Required Hardware | |
| Internet Connection | |
| Charging Temperature | |
| Operating Temperature | |
| Storage Temperature | |
| Operating Humidity | |
| Storage Humidity | |
| Certifications | |
| Physical | |
| Color | |
| Water Resistance | |
| IP Rating | |
| LED Indicator | |
| Material of Construction | Silicone |
| Dimensions | |
| Weight | 0.5 oz / 13 g |
| Warranty Length | Limited 2-Year Warranty |