This product is either discontinued or we cannot get that from suppliers.
Speaker Size: 13.6 mm, Speaker Impedance: 16 ohm, Charge Time: 1.5 hours, Battery Capacity: 122 mAh typical, Speaker Range Communication: 100 Hz - 6.8 kHz, Speaker Range Music/Media: 100 Hz - 20 kHz, 02 Years Limited Warranty, 212722-08.