Promate Concord Dynamic HD Stereo Headset with Passive Noise Cancellation

Concord headphones let you stream powerful sound with no strings attached. Easy to use and equipped with professionally tuned drivers that give this headphone access to great sound every time. Enjoy a musical fiesta with Concord

Bluetooth Version: v4.2

Bluetooth Chipset: JL

Bluetooth Profile: HSP, HFP, A2DP

Input Voltage: 5V, 1A

Bluetooth Frequency: 2.4-2.48GHz

Impedance: 32Ω

Charging Time： ~2 hours

Usage Time: 8 hours

Standby Time: 40Hours

Battery Capacity： 250mAh

Battery Type: Li-Polymer

Operating Distance: 10m

MicroSD Card slot: 64Gb Max Supportz