The Sennheiser HD 4.00 BT is a wireless headphone designed for those who want to experience high-quality audio without being tethered to their device. With its sleek design, comfortable fit, and impressive sound quality, this headphone has become a popular choice among music enthusiasts and audiophiles alike.

Technical Specifications

The Sennheiser HD 4.00 BT features advanced wireless technology that allows for seamless connectivity with devices via Bluetooth or NFC. The headphone is equipped with a rechargeable battery that provides up to 20 hours of playback time, making it ideal for long listening sessions or travel. The microphone on the HD 4.00 BT ensures clear hands-free calls and voice commands.

Design and Build Quality

The Sennheiser HD 4.00 BT has a sleek and modern design that is both stylish and durable. The grey color scheme gives the headphone a premium look, while the foldable headband makes it easy to store when not in use. The ear cushions are made of soft, breathable material that ensures comfort during extended wear.

Sound Quality

The Sennheiser HD 4.00 BT delivers impressive sound quality with its 40mm dynamic drivers and advanced wireless technology. The headphone is capable of producing deep bass notes, clear mids, and crisp highs, making it suitable for a wide range of music genres. The soundstage is expansive, with good separation between instruments and vocals.

Wireless Connectivity

The Sennheiser HD 4.00 BT features advanced wireless connectivity options, including Bluetooth 3.0 and NFC pairing. This allows users to easily connect their devices without the hassle of cables or complicated settings. The headphone also supports aptX and AAC codecs for high-quality audio streaming.

Microphone Quality

The microphone on the Sennheiser HD 4.00 BT is designed for clear and crisp voice quality, making it ideal for hands-free calls and voice commands. The microphone is sensitive enough to pick up even faint sounds, ensuring that users are heard clearly by their recipients.

Battery Life

The rechargeable battery in the Sennheiser HD 4.00 BT provides up to 20 hours of playback time on a single charge. This makes it ideal for long listening sessions or travel, where a reliable source of power is essential.

Comparison to Competitors

The Sennheiser HD 4.00 BT competes with other wireless headphones in its class, such as the Bose QuietComfort 30 II and the Sony WH-1000XM4. While each headphone has its own unique features and strengths, the Sennheiser HD 4.00 BT stands out for its impressive sound quality, comfortable design, and advanced wireless technology.

Conclusion

The Sennheiser HD 4.00 BT is a high-quality wireless headphone that delivers exceptional sound quality, comfort, and convenience. With its sleek design, advanced wireless technology, and impressive battery life, this headphone has become a popular choice among music enthusiasts and audiophiles alike.

Technical Details

• Frequency Response: 17 Hz – 22 kHz
• Sensitivity: 100 dB ± 3 dB
• Impedance: 32 ohms
• Battery Life: Up to 20 hours
• Weight: 260g
• Dimensions: 175 x 130 x 70 mm (folded)
• Materials: Plastic, Metal

Additional Features

• Wireless connectivity via Bluetooth or NFC
• Rechargeable battery with up to 20 hours of playback time
• Clear and crisp microphone for hands-free calls and voice commands
• Foldable design for easy storage
• Compatible with a wide range of devices, including smartphones, tablets, and laptops.