Introducing the Foldable Over-Ear Bluetooth Headphones from BsrFirst, designed to provide an exceptional audio experience while ensuring comfort and usability. Crafted with the latest Bluetooth technology and an ergonomic design, these headphones are perfect for music lovers and audio enthusiasts.

These headphones utilize advanced Bluetooth 5.1 technology, which not only reduces power consumption compared to older versions like Bluetooth 4.2 but also enhances transmission speed, minimizes interference, and provides a stable signal. Users can enjoy high-fidelity sound with deep bass and clear treble, allowing for an immersive listening experience even at lower volumes.

The headphones feature a surround sound noise reduction technology that delivers real HIFI sound effects. This technology creates a four-dimensional audio experience, significantly reducing distortion and ensuring that the sound quality remains high-fidelity. The dual dynamic low-frequency sound enhances the overall auditory experience, making it feel as if you’re at a live concert.

Comfort is paramount with these headphones. They come equipped with protein leather earmuffs that offer excellent breathability, coupled with soft sponge cushioning that wraps comfortably around the ears. This design prevents discomfort during prolonged use. Additionally, the stainless steel brushed telescopic headband further strengthens the connection between the earphones and the headband, ensuring durability.

With a 7-step telescopic adjustment feature, users can easily find their perfect fit, making these headphones suitable for most people. The powerful subwoofer capabilities are delivered through a 40mm large dynamic unit, which, combined with the spacious circumaural structure, produces explosive low-frequency performance. This design not only enhances bass response but also ensures that sound isolation is effectively managed.

These headphones support multiple usage modes, including Bluetooth, AUX wired, and card playback. The card playback mode allows users to listen to music without connecting to a mobile device. In Bluetooth mode, a real-time power display helps keep track of battery life. The plug-in mode ensures that users can continue to enjoy their audio even when the headphones run out of power.

Specifications for these headphones include:

• Bluetooth Version: Bluetooth 5.1 + EDR
• Impedance: 32Ω
• Signal-to-Noise Ratio: 85dB
• Speaker Specifications: 40mm
• Transmission Distance: 10-30m (barrier-free)
• Output Power: 40mW
• Battery Capacity: 650mAh
• Usage Time: Up to 24 hours at maximum volume

The packaging includes one pair of headphones, one instruction manual, one audio cable, and one charging data cable, making it an all-inclusive package for your audio needs.