There seems to be a new device released the RS-12 and also another clone of it that only plays 8bit games avoid that one. This RS-12 is a smaller version of the bigger RS-07 device specs are below along with a video.
Dual-Core 64Bit 384Mhz Software Functions:
Retro Gaming Emulation, Audio/Video Playback, Audio Recorder, E-Book Pre-Installed Emulators: Arcade, GameBoy Advance(GBA), Super Famicom(SFC), Megadrive / Sega Genesis(MD), FC Pre-Installed Retro Games:
Over 520 Pre-Installed games for all the above platforms. Possibility to load more games onto the device via the accessible and easy-to-use software interface Display:
3.0" Inch Color Display ; Resolution: 480x272 Video Playback:
Supports the following formats: RM, RMVB, AVI, MKV, WMV, VOB, MOV, FLV, ASF, DAT, MP4, 3GP, MPG, MPEG RAM:
32MB DDR2 Storage: 512MB Fast-Accessing Storage Storage Expansion:
Micro SD Card Slot (For up-to 32GB) Speakers:
High Quality - Built IN Battery: Li-Ion 18650 - 1000mAh Audio Playback:
Supports the following formats: APE, MP3, WMA, DRM WMA, OGG, APE, FLAC, WAV, AAC (Including: AAC-LC/AAC HE/AAC+V1/V2) Audio Recording:
Supports Audio Recording in .WAV (High Quality) I/O:
1x - DV 5V Mini-USB Charging Port ;
1x - EXT For Multiplayer Compatibility ;
1x - MicroSD/TF Card Slot Console Dimensions: 11.7x8.6x9.00cm Console Weight: 350gr Package Dimensions: 14.1x10.6x12.3cm Package Weight: 550gr