STREETZ Wireless stay-in-ear earbuds with charging case, sweat resistant, BT 5, TWS, black TWS stay-in-ear headphones from STREETZ with microphone, call/media buttons, Bluetooth 5 with 10 m range and sweat-resistant design that can handle intense and sweaty workouts. Thanks to the comfortable stay-in-ear fit, you can be sure that the headphones remain in your ears even during the most intense workouts. The headphones have a battery life of 3-4 hours, up to 16 hours with the included charging case.• Bluetooth 5• Sweat-resistant• Impedance: 16 Ω• Driver diameter: 6 mm • True Wireless Stereo• Wireless range: 10 m• Charge time: about 2 hours• Sensitivity: 92 dB ± 3 dB• Microphone and answer/end call/media buttons• Charge port: USB-C (5 V DC, 500 mA)• Frequency response: 20 Hz - 20 KHz (earbuds and microphone)• Music and talk time: about 3-4 hours, 16 hours with charge case• Battery: 3.7 V, 50 mAh Li-ion (earbuds), 3.7 V 500 mAh Li-Po (charging case)Package contents: Earbuds, charging case, eartips, USB-C charging cable and manual.