SKMEI Fashion Multifunction Mens Wrist Watch 30m Waterproof Digital Watch With Week Date Stopwatch Alarm Clock Black AL1389 Dolls & Stuffed Toys 1 Compatible OS Android&IOS OS

1 Compatible OS Android&IOS OS Language English

Red Bronze (Optional)

Focal Length: f=5-25mm

Angle: 150 ° FOV horizontal viewing angle of 170 ° DFOV diagonal perspective

used for establishing USB communication between PC and the STM32 development board IO expander (including VCC/GND)

SKMEI Fashion Multifunction Mens Wrist Watch 30m Waterproof Digital Watch With Week Date Stopwatch Alarm Clock Black AL1389 Dolls & Stuffed Toys 1 Compatible OS Android&IOS OSProduct Description Case Thickness: 16mm Band Width: Model Number: AL1389 Dial Diameter: 48mm Band Length: Feature: None Movement: Digital Band Material Type: Stainless Steel Case Shape: Round Dial Window Material Type: Glass Boxes & Cases Material: No package Water Resistance Depth: 3Bar Clasp Type: Bracelet Clasp Case Material: Stainless Steel Style: Fashion & Casual 1: Dual time, stopwatch timing, luminous function, etc. 2: Good waterproof