Stereo Bass Earphone TWS with Special charging case Durable Wireless Sport Earbuds
                                                                                                                    
◆Bluetooth solutions:Actions 5003
◆Bluetooth version: 5.0+EDR
◆Battery: 50mAh*2 rechargeable Lithium battery
◆Working range: 10M
◆Talking Time : 2.5 hours
Music time: 3.5 hours
◆Earphone charging time : about 1 hours
◆Speaker size: 8mm
◆Frequency : 20-20K HZ ◆Impedance : 16 ohm ◆Sensitivity : ≥-90dBm ◆S/N:≥95dB