Design and Comfort: The Philips TAT4769 has an ergonomic design that fits perfectly in the ear. It is lightweight and made of soft material, preventing discomfort even with prolonged use. It also fits securely, resisting intense physical activity. Sound Quality: It features advanced sound technology that achieves an excellent balance between bass, midrange, and treble, delivering high fidelity. Its ambient noise reduction is highly effective, allowing you to enjoy music in noisy environments. Functional Features: Equipped with Bluetooth 5.4, it connects quickly and stably to smart devices, with a transmission range of up to 20 meters. The high-quality microphone captures voices clearly thanks to noise reduction during calls. It is water and sweat resistant with an IPX7 rating, suitable for outdoor activities, including swimming. Its touch control is easy to use to manage music, calls, and the virtual assistant. Parameters Basic Parameters: Model: TAT4769 Category: Earphone Use: Bluetooth, Sports, Music Wearing Mode: Ergonomic Ear Fit Connection: Bluetooth Frequency Range: 2.402 - 2.480GHz Functional Parameters: Noise Reduction: High-efficiency in calls and ambient noise Water and Dust Resistance: IPX7 Bluetooth Version: 5.4 Audio Coding: AAC, aptX Adaptive, and LDAC Transmission Range: ≥20 meters Charging and Battery Life: Battery Capacity: 300 mAh Charging Time: 2 hours Single Battery Life: 10 hours Battery Life with Charging Case: Up to 40 hours Other Parameters: Colors: Solid Black, Radiant Silver, Deep Dark Blue, Deep Red