Description: 3.5mm audio interface provides simple wired connection of multiple devices without Bluetooth-compatible. Insert the SD-card, without any Bluetooth-compatible device, you can still enjoy music anytime and anywhere. Foldable design and adjustable hinge length are very comfortable to wear and easy to carry. Lovely RGB rabbit ear wireless earphones are children's best holiday gift. It is made of good quality ABS material, durable to use. USB charging rechargeable battery is convenient and practical. The length of this product is 18cm, the width is 16cm and the height is 8.8cm. It supports all audio devices with Bluetooth-compatible function, such as mobile phones, tablets, laptops, computers, etc. Item Name: Headphone Material: ABS Bluetooth-compatible Protocol: 5.0 Battery: 400mAh (Included) Listening Time: 12 Hours Charging Time: 2 Hours Standby Time: 148 Hours Charging Method: Micro USB Bluetooth-compatible Receiving Distance: 15 Meters Speaker Impedance: 32Q15% Usage Mode: Bluetooth-compatible/SD-Card/Plug-In Cable Frequency Response Range: 20HZ-20KHZ Features: Lovely, RGB Light, Foldable Size Details: 18cm x 16cm x 8.8cm/7.09" x 6.3" x 3.46" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Headphone 1 x Data Cable 1 x 3.5mm Audio Cable 1 x User Manual