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- Sennheiser CX 686i Wired Earphones vs Sennheiser HD440 BT Wireless Headphones
Sennheiser CX 686i Wired Earphones vs Sennheiser HD440 BT Wireless Headphones comparison
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| key specs | ||||
| Colour | Green | Black | ||
| Headphone Type | In-Ear | Over-Ear | ||
| Microphone | Yes | Yes | ||
| Connectivity | Wired | Wireless | ||
| Type | Earphones | Headphones | ||
| general | ||||
| Brand | Sennheiser | Sennheiser | ||
| Model | CX 686i Wired Earphones | HD440 BT Wireless Headphones | ||
| Release date | March 30, 2014 | January 1, 2017 | ||
| Colour | Green | Black | ||
| Type | Earphones | Headphones | ||
| Headphone Type | In-Ear | Over-Ear | ||
| Connectivity | Wired | Wireless | ||
| Model Number | CX 686i | HD440 BT | ||
| product details | ||||
| Microphone | Yes | Yes | ||
| Microphone Impedance (Ohms) | -44 | - | ||
| Cord Length (Metres) | 1.2 | - | ||
| Connector Size | 3.5mm | - | ||
| sound features | ||||
| Impedance (Ohms) | 20 | 18 | ||
| Sensitivity (dB) | 118 | 113 | ||
| Frequency Response Range | 18Hz-20,000Hz | 18Hz-22,000Hz | ||
| connectivity features | ||||
| Bluetooth | No | Yes | ||
| Bluetooth Codec Support | - | aptX | ||
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