Hi, windows 7,10 , vista and xp, if needed.
Already used on android browser, a bit buggy.
Count me in if needed for something else.

Edit:

PC:
Nome do SO   Microsoft Windows 10 Pro
Versão   10.0.16299 Compilação 16299
Processador   Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz, 2301 Mhz, 2 Núcleo(s), 4 Processador(es) Lógico(s)
Memória Física (RAM) Instalada   4.00 GB
Disk: 500GB

Mobile:
Huawei HiSilicon Kirin 655
CPU : 4x 2.1 GHz ARM Cortex A53 + 4x 1.7 GHz ARM Cortex A53
Type : Octa-Core
3GB/16GB

TV Box:
Core: Quad Core
CPU: ARM Cortex-A7
GPU: Mali-400
Max. Extended Capacity: 32G
Model: V88 Mars II
RAM: 2G RAM
RAM Type: DDR3
ROM: 8G ROM
System: Android 6.0
Type: TV Box
Processor: RK3229

Many more devices, in case of need for testing purpose.

SO: Windows 10,8,7,Vista,xp(various versions)
       Android 7 and 6
Browsers:
Opera+firefox+chrome+IE+Edge(versions available)