your audio experience with this versatile 2-in-1 Bluetooth TWS Earbuds and Emergency Power Bank. Featuring Bluetooth v5.0, hands-free calling, and a digital display, these earbuds deliver clear sound with a frequency range of 20Hz-20kHz, a working distance of up to 33 feet, and a long battery life for music or talk time (up to 3 hours). The charging case doubles as a 1800mAh power bank, providing emergency charge for your devices on the go. Key Features: * Bluetooth v5.0 for fast, stable connections; * Hands-free calling with built-in microphone; * Emergency power bank (1800mAh) with USB output; * Up to 3 hours of music or talk time; * Quick charging (1-2 hrs for earbuds, 3-4 hrs for case); * Certified safe with Prop 65 compliance;