Promate High-Fidelity Stereo Over-Ear Wireless Headphones

Technical Specifications: • Bluetooth Version: 5.3 • Bluetooth Profile: HSP/HFP/A2DP/AVRCP • Bluetooth Chipset: JL.7003F • Input: 5V/1A • Impedance: 32Ω • Speaker Frequency: 20Hz to 20kHz • Bluetooth Frequency: 2402-2480 MHz • Charging Time: 2 Hours • Playing Time: 24 Hours • Standby Time: 30 Hours • Battery Capacity: 300mAh • Battery Type: Li-Polymer • Operating Distance: 10-15m • Speaker Diameter: Φ 40mm • Mic Sensitivity: -32dB • Charging Cable Length: 30cm • RF Output Power: <=20dBm