- Bass pile only on the way. Large battery capacity.
- Instruments and speech are close to the state of porridge, tops are weak. Extremely uncomfortable, in comparison with conventional tablets, wearing causes a lot of discomfort, except that it saves the battery and makes it difficult to sow when running. Not a particularly reliable design, accidentally pulling it is very easy to break. The plastic arms and joints, like the plastic itself, look unreliable and cheap.