Detailed comparison and review of Monster iSport Achieve 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 | Monster iSport Achieve | Sennheiser CX 400BT |
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Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
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Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
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Colour | Green | Blue | Black | White | Black | |
Protection | Sweat-resistant | - | |
Design | Sports | - | |
Recommended Use | - | Portable electronics |
SOUND QUALITY | Monster iSport Achieve | Sennheiser CX 400BT |
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Headphones Form Factor | In-ear | In-ear | |
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Headphones Technology | - | 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 | - | Monster iSport Achieve 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 | - | 7 mm | |
In-Cord Volume Control | Yes | - |
MICROPHONE | Monster iSport Achieve | Sennheiser CX 400BT |
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Form Factor | - | Built-in | |
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Type | On-cable | - | |
Microphone Operation Mode | Mono | - |
REMOTE CONTROL | Monster iSport Achieve | Sennheiser CX 400BT |
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Controls | Answer/end | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
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CABLE | Monster iSport Achieve | Sennheiser CX 400BT |
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Cable Type | Headphones cable - anti tangle | USB-C to USB-A cable - detachable - straight - 25 cm |
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FEATURES | Monster iSport Achieve | Sennheiser CX 400BT |
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Features | - | Voice alerts, touch control | |
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Intelligent Assistant | - | Siri, Google Assistant |
BATTERY AND CHARGING | Monster iSport Achieve | 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 | 5 hour(s) | 7 hour(s) | Sennheiser CX 400BT lasts longer on a single charge than the Monster iSport Achieve. |
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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Charging Time | - | 1.5 hour(s) | |
Included Qty | - | 2 |
WIRELESS LINK | Monster iSport Achieve | Sennheiser CX 400BT |
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Radio Transmitter Power | - | 10 mW |
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OTHERS | Monster iSport Achieve | Sennheiser CX 400BT |
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Included Accessories | Earhook, ear tips kit | 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 |