-Material: ABS+ Silicone with rubber oil
-TWS Connection function
-Bluetooth Connection 4.2
-Hands-free call
-Support TF Card
-Speaker: 3 w * 1
-Frequeancy Response: 20Hz-20Khz
-Working Time: up to 4 hours Battery
-Charge Time: 1 hours
-Signal to noise ratio: 85 db
-Battery capacity : Built in battery 400mah
-Product color: multi-color is optional
-Product size: 13×9×6cm