Audio-Technica ATH-CKS5TWBK: Solid Bass Wireless In-Ear Headphones (Black) The Audio-Technica ATH-CKS5TWBK are true wireless in-ear headphones designed to deliver powerful bass and high-fidelity audio. With a truly wireless design and Bluetooth® 5.0 technology, they offer ultimate comfort and freedom of movement. These headphones feature a long-lasting battery life, water-resistant performance, and built-in controls for a seamless listening experience. Key Features: Powerful Solid Bass Sound: Exclusive 10 mm drivers with dual-layer diaphragm deliver clear, full-range audio with superb bass. Truly Wireless Design: Bluetooth® 5.0 technology provides ultimate comfort and freedom of movement. Water-Resistant Performance: IPX2 drip-proof rating protects headphones from dripping water, such as rain and sweat. Auto Power Function: Headphones turn on when removed from the charging case and turn off and begin charging when returned to the case. Built-In Mic and Controls: Control music, calls, and volume without touching your smartphone. Long-Lasting Battery Life: 15 hours of continuous use on a full charge, with an additional 30 hours provided by the portable charging case. Qualcomm cVc™ Technology: Ensures clear, natural-sounding conversations during calls. High-Quality Audio Codecs: Compatible with Qualcomm® aptX™ audio and AAC codecs for excellent wireless audio transmission. Secure, Comfortable Fit: Thin, flexible silicone eartips and included 3D loop supports provide a secure fit and improve high-frequency sound delivery. Technical Specifications: Driver Diameter: 10 mm Frequency Response: 5 – 40,000 Hz Sensitivity: 110 dB/mW Impedance: 16 ohms Battery Life: 15 hours (headphones), 45 hours total with charging case Charging Time: Approximately 2 hours Water Resistance: IPX2 Weight: Approximately 8 g per earbud Experience powerful bass and high-fidelity audio with the Audio-Technica ATH-CKS5TWBK true wireless in-ear headphones. Read more on Audio-Technica’s official website.