S300 smart armband with built-in TWS Bluetooth earbuds heart and blood pressure monitor

S300 smart bracelet with built-in TWS Bluetooth headphones • Bluetooth 5.0 Watch functions: • Heart rate, blood pressure and blood oxygen monitoring. • Multi-sport mode, pedometer, distance traveled, calories burned, etc. • Notice of calls, messages and notifications etc. • Sedentary reminder, sleep monitoring, timer, remote control of music, weather information ... etc. Headphone Features: • Smart Auto Power On Headphones. Automatic connection (once paired in the first use). • Tactile headset with playback and call control functions. • Latest generation Bluetooth 5.0 with low consumption and long range. Chip: Nordic 52832 FLASH memory: 512KB + 16KB Bluetooth: 5.0 Usage distance: up to 15 meters Approximate charging time: