YYK-520 Bluetooth Earphone 525 Business Style Over-Ear Rotating Single Ear Charging Case 526 With Receiver For Export

1. Headphone specifications Bluetooth version: V5.4+EDR Wireless frequency: 2.4GHz Supported protocols: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Transmission distance: 10m Battery capacity: 50mAh Charging Voltage/Current: 5V/1A Playtime/Call Time: Approximately 4 hours Charging time: approximately 1 hour Standby time: 120 hours Speaker impedance: 8MM 32 Microphone sensitivity: -42Db Operating temperature: -10 to 50℃ 2. Charging Case Parameters Input Voltage/Current: 5V/1A Battery capacity: 400mAh Gross weight: 108g Net weight: 74.5g 3. Packaging dimensions: 151*80*28mm 4. Product List Earphones*1, charging case*1, charging cable*1, ear tips*4, manual*1