Material: ABS + PC + Metal Charging Time: 2H Music Time: 33H Phone Calling Time: 26H Standby Time: 400H Product Net Weight: 185 g Bluetooth Version: 5.1 (Pairing Name: TD-01) Unit Package Size: 20.5*22*5 cm Lightweight and comfortable design Using for a long time without hurt Ultra-long usage time Bluetooth 5.1 stable connection Compatible with Android/ios system Portable and foldable design Storage does not occupy large space