Detailed comparison and review of Huawei FreeLace CM70-C and Sennheiser CX 400BT. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
DESIGN AND DIMENSIONS | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Product Type | Earphones - Bluetooth - wireless - USB-C | True wireless earphones - Bluetooth - wireless | |
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Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
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Colour | Graphite black | White | Black | |
Protection | Waterproof, sweat-resistant, rainproof, IPX5 | - | |
Recommended Use | Portable electronics | Portable electronics |
SOUND QUALITY | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Headphones Form Factor | In-ear | In-ear | |
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Headphones Technology | Dynamic | Dynamic | |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | - | Bluetooth 5.1 | |
Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
Bluetooth Audio Codec | - | SBC, AAC, aptX | |
Noise Isolating | Yes | - | Huawei FreeLace CM70-C are equipped with a noise isolating function. |
Sound Output Mode | Stereo | Stereo | |
Frequency Response | - | 5 - 21000 Hz | |
Total Harmonic Distortion (THD) | - | 0.08% | |
Max Sound Pressure | - | 107 dB | |
Diaphragm | TPU - 9.2 mm | 7 mm | Huawei FreeLace CM70-C have a thicker diaphragm than Sennheiser CX 400BT. |
In-Cord Volume Control | Yes | - |
MICROPHONE | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Form Factor | - | Built-in |
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REMOTE CONTROL | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Controls | Volume, power on/off, voice assistant | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
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CABLE | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Cable Type | USB-C charge cable | USB-C to USB-A cable - detachable - straight - 25 cm | |
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Plated Connector | Nickel | - |
FEATURES | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Features | HUAWEI HiPair technology, fast charge | Voice alerts, touch control | |
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Intelligent Assistant | - | Siri, Google Assistant | |
Sensors | Hall sensor | - |
BATTERY AND CHARGING | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
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Battery Capacity | - | 55 mAh | |
Battery Life | 18 hour(s) | 7 hour(s) | Huawei FreeLace CM70-C lasts longer on a single charge than the Sennheiser CX 400BT. |
Battery Life Details | - | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
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Standby Time | 288 hours | - | |
Charging Time | - | 1.5 hour(s) | |
Included Qty | - | 2 |
WIRELESS LINK | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Radio Transmitter Power | - | 10 mW |
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OTHERS | Huawei FreeLace CM70-C | Sennheiser CX 400BT |
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Included Accessories | - | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
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Compliant Standards | - | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU |