Iron Man Wireless Speaker Portable Bluetooth Subwoofer Marvel Cartoon Mini Soundbox with TF USB Loudspeaker Gold

Description

--Bluetooth distance: 10 meters barrier with the Frequency response: 20HZ-18KHZand Operating voltage range: 3.0V-4.2V.--Long Standby time is about 120 hours and The charging time is about 2~3 H.--Large Battery capacity: 1200mah and HD Bluetooth v4.1.