- The box is the sound good next / to a layman no audible loss of sound - The volume is a bit quiet but this also could be the laptop (on Android, it is loud) - Approximately 170 ms time delay (for films can compensate in VLC Player "audio Desyncronisationsausgleich" -170 ms with me) - Connection to the box works without problems via BT stick from the laptop or android phone (Connects independently on both systems) - The no BT PIN must be entered does not bother me ... if someone wants to connect with the box, let him ... but probably not exciting affair for those ...