ZF4KF4JHY Earbuds Wireless Earbud

Specifications:Bluetooth Version:V5 0+EDR Wireless Frequency:2 4GHz Protocol Support:A2DP1 3/ HFP1 6/ HSP1 2/ AVRCP1 6/ D11 3 Transmission Distance: 10m Headphone:Battery Capacity:50mAh Music/Talk Time: about 4 hours Charging time: about 1 hour. Standby time: about 120 hours. Speaker impedance: 8mm 32mm. Microphone sensitivity: - 42dB Charging case: charging input:5V 1A. Battery Capacity:2600mAh Note:Please allow 1-3cm differs due to manual measurement and slight color difference for different display settings. Thanks for your understanding, happy day! Package Contents:1 x Pair of Headphones (Left and Right) 1 x Charging Case 1 x USB Cable 4 x Headphones 1 x User Manual Package Content 1 x Pair of Headphones (Left and Right). 1 x Charging Case 1 x USB Cable 4 x ear muffs, 1 x user manual