Lightweight Mini Wireless Bluetooth Earphone With Charging Storage Box,Storage Box Lightweight Mini Wireless Bluetooth Earphone With Charging, Charging warehouse size: 5,5 x 4,7 x2cm,1X Bluetooth Earphone, 5,8MM speaker unit Mini speaker than the 6MM unit, bass stronger, more open sound field, such as the Pro concert site, Headphone weight: 4g, Bluetooth Version: V4,2.Mini Wireless Bluetooth Earphone With Charging Storage Box Lightweight.