Smartwatch (with calling function) - Voice Link. [Product Specifications] Color: Black Bluetooth Specification: Ver5.3 Compatible Models: Android 6.0 or higher / iOS 10.0 or higher Communication Distance: Approximately 10m Continuous Operation Time: Approximately 1-2 days Continuous Standby Time After Pairing: Approximately 3 days Charging Time: Approximately 1.5 hours Power: USB charging (DC5V1A) Built-in Battery: Lithium-ion battery 3.7V Battery Capacity: 160mAh Number of Recharge Cycles: Approximately 300 times Waterproof Specification: Water resistant Body Weight: Approximately 47g Body Size: Approximately W4 x D1.3 x H25.5cm Wrist Size: Minimum approximately 15cm / Maximum approximately 22cm LCD Size: Approximately 1.44 inches Accessories: USB charging adapter Body Material: ABS, TPU, Stainless steel Belt Material: ABS, Stainless steel [Product Features] The "Smartwatch with Calling Function - Voice Link" is a smartwatch product with an attractive, high-class form and black color. It can be operated by tapping and swiping the screen. Since a microphone and speaker are built-in, you can make calls with this product. It is useful in both private and business settings. It also has functions to measure various physical conditions, and you can receive incoming calls and SNS notifications. In addition, it is equipped with a smartphone search function. *Please download the instruction manual from the two-dimensional barcode on the package. *Be sure to read the instruction manual. #Smartwatch #Wristwatch