Anker Soundcore R500 ,Bluetooth Neckband features Up to 20hours of Playtime, 10mm Drivers, IPX5 Waterproof Technology. Colors:Yellow suggesting that combined with Anker

suggesting that combined with Anker PD Type-C charger to achieve faster and more stable charging efficiency

3840Hz PWM

The new Adaptive Noise Canceling Optimizer automatically adjusts to external noise

24 hours with always-on display

50% in 20 min

Anker Soundcore R500 ,Bluetooth Neckband features Up to 20hours of Playtime, 10mm Drivers, IPX5 Waterproof Technology. Colors:Yellow suggesting that combined with AnkerSoundcore R500 In Ear Wireless Earphone Soundcore R500 Yellow Bluetooth Neckband features Up to 20hours of Playtime, 10mm Drivers, IPX5 Waterproof Technology. 3hours Charge in Just 10mins, Ultra Small & Comfortable Fit, Bluetooth 5. 0, USB C Fast Charge, 10mm Drivers High Quality Sound. Music and Call Control, 195 mAh Battery, Al Enhanced Calls. Impedance (Ohms) 16Frequency Response Range 200Hz 20,000Hz Charging Port USB Type C