The Fitbit Charge HR Wireless Heart Rate Activity Wristband in Black is a versatile fitness technology product by Fitbit. It is designed for running and jogging activities, providing real-time heart rate monitoring and various features such as Bluetooth connectivity, alarm, clock, calorie monitoring, and average heart rate calculation. This activity tracker offers a sleek and comfortable wristband attachment, making it a convenient accessory for fitness enthusiasts looking to track their performance and improve their overall health. the battery is not charged and there is not a charger included. sold as is.