D&F Wireless WiFi LCD Remote Control with USB Charger Cable Wrist Strap for GoPro Hero 6/5/4/3+/3/2 & GoPro Session Display Camera Status: built-in LCD screen, anytime and camera sync, sync single shot, take video, continuous shooting, settings and so on.Quick camera confirm status and settings to bring you efficient and convenient use. Effective Distance: 50m (No electromagnetic) ,can control up to 50 cameras simultanously. Waterproof :1.5m(Max). Package Size:16.5*3*6.2cm. Package Weight: 100g Built in battery:Built-in 500mAh Li-ion battery, work for 4 hours after fully charged, about 40 minutes charging time. Note:the first time use need to charge 1 hours at least. Key ring and wrist strap: Attach the remote to your keys, zippers or other gear with the included key ring,OR wear it like a watch(wrist strap length:approx 30cm),it is very convenience to carry. Compatible with GoPro HERO6/HERO5/5 session/ HERO4/HERO+LCD/4 session/ 3+/3 (Not for GoPro HERO(2018),and camera not included).Kindly Note: If it can not connect with your device, please contact us, we are here to help.