•Dual dynamic drivers design, total 4 voice units, to improve the sound resolution •Bluetooth-compatible 5.0 technology, fast and stable connection •The charging compartment has LED digital display to show the power •High-definition noise reduction voice calls •Automatic connection, low power consumption and long use time •Graphene diaphragm with dual moving coil, HiFi non-destructive sound quality •Touch control, easy to operate Specification: •Product model: T22 •Product type: TWS Bluetooth-compatible headset •Bluetooth-compatible version: Bluetooth-compatible V5.0 •Support decoding format: HFP, HSP, A2DP, AVR CP •Speaker frequency response: 50HZ-20KHZ •Rechargeable battery: 400mAh polymer lithium-ion battery •Channel: dual stereo channel •Transmission distance: 10 meters (barrier-free) •Speaker unit: 6mm •Speaker impedance: 32Ω •Standby time: about 120 hours Package included: •1 x Pair of Bluetooth-compatible Earphones •1 x Charging Case •1 x Charging Cable •1 x English and Chinese User Manual