Sereonic Portable Wireless TV Speakers for Smart TV w/ Audio Ports, 100ft Range (Black/Silver)

Wireless speaker with a charging docking station Listening Time of 8 hours @ 50% level 1 hour sleep timer (once activated, the speaker shuts off after 1 hour) Headphones/wired earbuds connectivity User replaceable 18650 battery 3-tone control to adjust audio to your hearing RF Transmission: 2.4GHz Frequency Speakers: 2 x 5W Class D Frequency Response: 20Hz – 20KHz Battery: 1 x 18650 3.7V Charge Time: 4+ hours Receiver Range: Up to 100 ft (30m) open field AC Adapter: Input 100-240VAC/50-60 Hz; Output 5VDC / 2000 mA Dimensions: 9” x 7”x 3.25” (24 x 11 x 8 cm) Weight: about 1.7 lbs. (800g)