REMAX True Wireless Stereo Earphones – Starry Black Enjoy clear music and smooth hands-free calls with Bluetooth 5.4 technology. Designed with a lightweight ABS body, 35mAh earbud battery and 250mAh charging case. Offers up to 4 hours music playtime, 12 hours standby, 1.5 hours charging time and 10m transmission distance. Stylish, compact and easy to carry, perfect for daily use, travel, office, online classes, gaming and entertainment. Comes in premium color box packaging.