Model Number: GO2SLEEP
Brand Name: XGREEO
Item type: Smart Wearable Ring Fitness Bracelet Home Sleep Device Blood Oxygen
Item size: 3.00 x 1.30 x 1.50 cm / 1.18 x 0.51 x 0.59 inches
Product weight: 0.0060 kg
Battery charging time: 2 hours
Battery lsting time: 3 nights
Voltage: 4.2V
Battery: built-in 37mAh Li-ion battery
Bluetooth: 4.1 and above
Waterproof level: IPX7
Language: Chinese, English and Japanese