Esperanza Ritmo Black
- NAI
- NAI
- OXI
- 1
- 57mm
- NAI
- NAI
- NAI
- 2.1+EDR
- Digital
- 10m
- 520mAh
- 0.49m
- 57mm
- Universal
- A2DP,AVRCP,HFP,HSP
- Audio (3.5mm),Mini-USB
- Mini-USB
- MicroSD (TransFlash)
- Cylinder
- Lithium Polymer (LiPo)
- Wired & Wireless
- Built-in
- Battery,USB
- 50mm
- 280 - 16000Hz
- NAI
- Black