If there is a problem with product quality, Please contact us as soon as you receive the package. We will do our best to solve problems for our customers. A negative review will not help solve a problem! F9-5C Description: The new generation of F9-5C Bluetooth headphones Improved LED display: Intuitive to know the electricity level of the F9-5 chip upgrade: upgrade Bluetooth 5.0 chip, remove auto start and combine Operational function update: one touch to change previous / next song and volume adjustment wizard Large Capacity Charging Booth: Can be used for headphone / mobile phone earphone storage box as mobile phone holder 9D bass: Enjoy 9D stereo surround sound and hi-fi CVC8.0 noise reduction: Enjoy HD calling effects without being affected by noisy environment Great Compatibility: Regardless of model and mobile phone, Bluetooth enabled devices can use these earphones Intelligent Touch Control: Tap the headset to cut the different function of music/ call. Easy to carry: the Charging box is small size with strap, easy to carry. Specification: Product model: F9-5C Type: TWS wireless Bluetooth headphones Bluetooth version: V5.0, Auto pairing Noise reduction version: CVC 8.0 Working distance: Within 10 meters Charging tank capacity: 2000 mah support: Automatic matching Standby: Total 220 hours Calling time: 180 hours Charging Frquency: 40 times Tank Input Current: 5 v 1A waterproof: IPX7 Display: LED display Applicable for mobile phone, tablets (android system compatible) Package Includes: 2 Pieces Wireless Earphones 1 Pieces Micro USB Charging Cable 1 Pieces User Manual 1 Piece Charging Box FAQ Q:When will we send your order? A:After we receive your order,we will send your order within 24 hours.(Except holidays) Q:How long does it take for me to receive the package A: Dear, it will normally arrive at the destination in 7-10 days, and then be delivered by the local courier, we will urge the courier to transport as soon as possible, Q:What if I received a product error or damage? A: If you receive a product error or damage,please contact us immediately,we will respond quickly and give you a solution,you will get a refund or replacement service. Q:About Feedback A:If you are satisfied with our product,please give us all 5 stars.If you have any questions,please do not give us negative feedback.Please inform us immediately,we will give you the best service and solution.