🎁 【Readystock】 + FREE Shipping 🎁 New Long Standby K21 TWS Wireless Bluetooth Headphone Business Waterproof 9D Surround Sound Headset Sports Earbuds

Material: Plastic. Category: Earphones Headphones. Earcups Type: Open-back. Charging Method: Charging case. Headphone Pads Material: Other. Magnet Type: Other. Total Harmonic Distortion: 0%. Impedance Range: up to 32. Bluetooth Version: 5.0. Package List: User Manual, Charging case, Charging Cable. With Microphone: Yes. Is wireless: Yes. Support Memory Card: Yes. Waterproof: Yes. Resistance: 32. Line Length: 0m. Frequency Response Range: 20-20000Hz. Sensitivity: 123dB. Plug Type: NONE. Function: For Internet Bar, for Video Game, Common Headphone, For Mobile Phone, HiFi Headphone, Sport. Active Noise-Cancellation: Yes. Volume Control: Yes. Control Button: Yes. Vocalism Principle: Other. Wireless Type: bluetooth. Connectors: USB. Communication: True Wireless. Style: In-ear. Certification: CE, RoHS. Origin: Mainland China. Brand Name: GARAFREE. Battery capacity: 300mAh. Talk time: 24h. Music time: 20h. Effective distance: 8-10m. Standby time: about 50 days