Key Features : 

• Integrated Dual-Band Wi-Fi 5
• 4K UHD Video Output
• HDR10, HDR10+, Dolby Vision, HLG Support
• Upscales 720p and 1080p to Near-4K
• Google Assistant, Alexa, Siri Control
• 1 x HDMI Out
• Android and iOS App Control
• Voice Search via Remote
• Voice Remote with TV Power, Volume, Mute

Roku Streaming Stick 3820R HD/4K/HDR Streaming Device Black

Hides behind your TV

The all-new design plugs right into your TV with a simple setup

Super-fast startup

Start streaming channels like Disney+, Prime Video, HBO Max, Apple TV+, Netflix, Sling, and Hulu in a snap—just turn on your TV

Long-range Wi-Fi

Enjoy fast, smooth TV streaming in any room with a strong Wi-Fi® connection, now up to 2x faster

No more juggling remotes

Power up your TV, adjust the volume, and control your Roku Streaming Stick with the Roku remote

Voice search & control

Quickly search, play entertainment, and control your streaming device with your voice using the voice remote

Breathtaking picture

Stream in 4K, Dolby Vision, and HDR10+ with sharp resolution and vivid color

Watch what you love

Upgrade your streaming with a massive selection of free, live, and premium TV, including Roku® Originals and 200+ Live TV channels for free on The Roku Channel

Works with popular voice assistants

Enjoy easy voice control with Siri, Alexa, and Google Assistant

Specifications : 

Featured Streaming Services : Apple TV+, Disney+, Peacock, Hulu, Netflix, Prime Video, SHOWTIME, Sling TV, HBO Max
Maximum Supported Resolution : 2160p (4K)
High Dynamic Range (HDR) : Yes
Operating System Compatibility : Not Applicable
Remote Control Included : Yes
Power Source : AC adapter, USB port
Media Card Slot : No
Works With : Apple HomeKit, Amazon Alexa, Google Assistant
TV Compatibility : Most HDTVs with an HDMI interface
App-Controlled : Yes
Smart Capable : Yes
Remote Control Type : Voice control
Remote Control Features : Voice Activated
Screen Mirroring : Yes
App Compatible : Yes
Compatible Wireless Standard(s) : Wireless N Dual Band
Interface(s) : HDMI
Surround Sound Supported : DTS Digital Surround
High Dynamic Range Format : HDR 10, HDR 10+
ENERGY STAR Certified : Yes