HTK18 TWS wireless Bluetooth Earphone Sports Headphones Deep Bass Stereo handsfree Headset Earbuds with mic for iphone samsung

Item Model :HTK18 Plus Bluetooth version: V4.1 Voice prompt: support Support Agreement: HFP HSP A2DP AVRCP Operating range:10m Battery capacity: single ear 50mAh, charging box 400mAh Talk Time : Up to 2 hours Playing Time : Up to 2 hours Standby time: 60 hours Charging time: less than 1 hou Headphone size: 18 * 24mm Charging box size: 82 * 28 * 38mm Headphone Weight: 5.5g How to pair Headset 1.Power On: Long Press MFB button around 3 second, Red and Blue light alternate flashing and accompanied “turn on” prompt tone 2.Power Off: Long press MFB button around 3 second, Red flashes and a prompt “turn off” prompt. 3.Pairing : Long press MFB button of L and R 3 seconds respectively, Red and Blue light alternate flashing and wait for 10 seconds, Two earbuds will automatec interconnection, and then double-click on one of the headphones MFB button(set it to host)，The headphone indicator light stops, the main headphone shows red and blue flashing. 4.Connect will Phone: Open phone setting–Bluetooth–click “HTK18”, After earphone connected, The headphone indicator light stops with a“connected”prompt. 5. After pairing with the phone, the headset light stops blinking 6.The earphones itself can not adjust the volume, adjusting the volume of the devices(such as mobile phones, watches) that connected with the earphones could raise/lower the earphones’ volume. 7. Only the main host earphone can answer phone calls, the other earphone cannot hear the sound from the calls. Warm Tips:Sometimes earphones\’ signal might be interrupted,that is because Bluetooth earphones signal transmission is interfered by other strong signal. For example, when earphones keep far away from mobile phone,under the multi-Bluetooth environment, in the open place, under heavy rain environment, strong WIFI signal environment.We suggest you stay away from radio interference (GPS, GPRS, WIFI) and use bluetooth version above 3.0 to listen from the earphones better.