You can also connect external headphones and speakers via the 3.5mm audio jack, a movie for one or a bash for a group, it's up to you.
eBay
C7 Portable Projector High Definition 1080P Mobile Phone with The Same Screen Home Mini 3d Projector Smart Office Projection
Aliexpress UK
Compact Size & Light Weight: This mini LED projector is lightweight and portable, owns a palm size, easy to hold in hand. This mini pocket LED projector is lightweight and portable, easy to hold in hand.
eBay
Oukitel WP100 Titan Rugged Phone 33000mAh 66W Charger 200MP Camera Built-in Projector Camping Light CellPhone
Aliexpress UK
Native 1280 720P resolution: Full HD 1920x1080p decoding, providing clear and detailed HD content without scaling or compression, and without pixel shifting. The native 720P projector supports 1080p image quality decoding and presents an impeccable HD image without impurities.
eBay
Oukitel WP100 Titan Rugged Phone 33000mAh 66W Charger 200MP Camera Built-in Projector Camping Light CellPhone
Aliexpress UK
Wire mirroring function to mirror your phone or tablet screen, very convenient. This mini projector is made of premium material, which can withstand long-lasting use. Features the ABS and glass material, which has high durability, not easy to deform.
eBay
Salange Mini Projector Q7 Outdoor Camping Movie Built-in Battery WiFi6 Screen Mirroring Smartphone Video Portable Pocket Proyect
Aliexpress UK
eBay
Salange Projector P28B Mini Home Theater Android 11 Free-Style Placement Projection Support Samsung Xiaomi iPhone Smartphone
Aliexpress UK
eBay
For Phone to HDTV Digital AV Adapter 1080P HDTV Sync Screen Digital Audio AV Converter for HDTV/Projector/Monitor iPhone 15
Aliexpress UK
1 Mini Projector. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 1 User Manual.
eBay
Mini Home Theater Projector, 180°Flexible Projection Angle 1080P Native USB Supports Smartphone Screen Sharing Suitable for Home
Aliexpress UK
Native Resolution: 1280x720P (supports 4K). Flexible Projection Angle: 180° adjustable projection angle. Connectivity: Dual-band WiFi (2.4G/5.8G) & Bluetooth 5.0. Quiet Operation for Bedrooms: Engineered for minimal noise output, ensuring an uninterrupted viewing experience—especially in bedroom settings where peace is preferred.
eBay
TouYinger G5 Portable 4K Projector 1080p Home Theater Full HD Projetor Android Dlp Beamer 3d U80 Cinema Smartphone with Battery
Aliexpress UK