9D Stereo Bluetooth Earphones, TWS Wireless Bluetooth5.3 Earbuds, Waterproof Sport Headset, Noise Ca
Bluetooth Version: Bluetooth V5.3Operating Voltage: DC 3.7V-4.2VEffective Distance: barrier-free 10-15Mlmpedance:32ΩSpeaker specification:10mm*2Bluetooth Profile:A2DP,AVRCP,HFP, HSPFrequency response:20Hz~20kHz Battery Capacity: 40mAhCharging Case:300mahCharge Input: 5V /1ACharge Time: about 1.5hCall playback time:About 3-4hPackage Included:1*Pair of Wireless Earbuds (Left & Right)1*Charging Case1*Charging Cable1*User Manual