DMES Wireless Sports Earbuds DE2

DMES DE2 Wireless Earbuds Bluetooth Version: V5.1 Profile Support: HSP, HFP,A2DP,AVRCP Stand-by Time: 210 hour Talk Time: 4-5 hour Music Play Time: 4-5 hour Charging Time: 1.5 hour Charging Voltage: DC 5V Frequency Range: 2.402G-2.480G Ambient Temperature: -20/+45 °C Transmission Distance: 10m Earbuds Battery Capacity: 45mAH / 3.7V Charging Case Battery Capacity: 350mAh /3.7V Driver Specifications: Driver Unit: 13mm Sensitivity:92 ± 3dB Impedance:32Ω ± 10% Frequency Response: 20-20000Hz 2 Years Warranty - 1-1 Exchange Warranty