Small box size:50*57*57 MM 50pcs/carton
Portable Mini Bluetooth Speakers Metal Steel Wireless Smart Hands Free Speaker Support SD Card For Mobile Phone factory direct sale Mental steel style subwoofer handsfree speaker support for home theater system
S28 Wireless Bluetooth Speaker Support Answer Calling and TF Card
Support TF card(micro SD TF card)with TF card slot,can play MP3 format files in the TF card
Support Mobile Phone/Laptop/Tablet PC
Larger 45mm driver delivers precise highs for superb sound
Built in rechargeable battery,charged by computer via USB interface.