Sony wireless audio receiver bluetooth compatible muc-m2bt1

Power supply: dc3.

7v: built-in rechargeable lithium ion charging time: approximately 2.

5 hours (full charge) charging method: usb charging duration (continuous audio playback time): up to 7.

5 hours duration (continuous talk time): up to 7.

5 hours duration (standby time): up to 200 hours model: mems directional characteristics: omnidirectional effective frequency band: 100hz-8,000 hz maximum communication distance: line of sight approximately 10m.