Megasound speaker SONY Black 11.2 kg S-master amplifier Bluetooth 5.2 20 - 20,000 Hz 564 x 269 x 294 mm (H x W x D) Lighting and sound control Up to 25 hours Yes Rechargeable battery Up to 100 speakers Ambient light USB A - iOS- Android MP3, WAV, WMA 1 year Yes

Yes Yes DENON Grey - Optical x 2- RCA x 1 8.2 kg 50 HEOS app 2.0 Yes Bluetooth 3.0 Yes 10 - 20,000 Hz 16 Ohms HEOS Yes 120 W (60 W + 60 W) Yes Mains USB x 1 - iOS- Android- Kindle Fire Yes 2 years Yes Yes 32

Portable speaker No MARSHALL Black Aux-in x 1 1.9 kg No Marshall Audio app 2.0 Bluetooth 5.1 50 - 20,000 Hz 4 Ohms 103 x 230 x 95 mm (H x W x D) IP67 (water & dust resistant) Up to 20 hours - Tweeter x 2- Woofer x 2 Rechargeable battery Stack mode Marshall Signature Sound - iOS- Android 85 dB 2 years Yes

Speaker No MARSHALL Black Aux in x 1 2.85 kg No Marshall Bluetooth app 2.0 Bluetooth 5.2 45 - 20,000 Hz 4 Ohms 260 x 170 x 150 mm (H x W x D) 60 W - Tweeter x 2- Woofer x 1 Mains 95 dB 2 years

Portable speaker No ULTIMATE Lagoon blue No 1.44 kg No Ultimate Ears app 2.0 Bluetooth 4.2 60 - 20,000 Hz 4 Ohms 242 x 138 x 141 mm (H x W x D) Waterproof & dustproof (IP67) Up to 20 hours Rechargeable battery 150+ speakers - iOS- Android 6 settings 90 dB 2 years

Yes HISENSE Black Yes Plastic 2 Bluetooth 4.2 2 years Quad Core Processor 4K Ultra HD 3840 x 2160p 400 x 300 20 W 3 mm 60 Hz 65' - Optical x 1- 3.5 mm jack x 1 Yes 60 Hz 8 ms - Sleep timer- Parental lock Vidaa U6 VIDAA Smart TV app Yes Yes - DTS Virtual: X- Dolby Audio Dolby MS12 LED directlit 1200:1 Mega 34 languages 0.5 W 140 W 98 W Amazon Alexa via remote G F

Portable speaker No BOSE White smoke No 0.29 kg No Bose Connect App 1.0 Bluetooth 4.2 - Waterproof- Dustproof Multi-connect Up to 6 hours Rechargeable battery Up to 2 speakers - iOS- Android 2 years Yes 1

7212 Tablet/Laptop Convertible Dell Dell 7212 Black Dell 7212 Ruuged Extreme Not Applicable 8 GB Dual Core 11.6 in Bluetooth AMOLED Intel Core i5-7300U 2.60 GHz Windows 10 Pro 256 GB 1920 x 1080 Wi-Fi 1 Year Unknown