FEATURES: 1. Manage calls hands free without pressing buttons, just say "YES"to accept call ,say "NO" to reject call. 2. Voice prompt: voice phone number when calls come in/power on/power off/connected/disconnected/lowe power etc 3. Play/pause 4. Battery status can be displayed in your iPhone/Xiaomi cell phone 5. Crystal clear stereo sound based on dual mic noise reducing, noise cancellation,wind noise cancellation and echo cancellation SPECIFICATION: Bluetooth Vervsion:V4.1 Chip:CSR chip,UK imported professional Bluetooth chip,low power consumption and stable signal. Size:6.5cmx1.5cmx1.2cm Transmission range:33ft(10meter) Battery: 300mAh Polymer lithium battery Music time:24h Talk time:28h Standby time:.35days/ Charging time:3h DEVICE COMPATIBILITY : Compatible with iPhone,Samsung,VIVO,OPPO,XIAOMI,all smartphones with Bluetooth function Compatible with iPad, Smart TV,laptop How to switch languages? First,please make sure the Bluetooth earpiece is power off(if it is power on, please turn off it),long press the main function button(power button) 6-8 seconds until the indicator light flashing red and blue alternately,then double clicks power button to switch How to pair? Long press power button 6-8 seconds until the indicator light flashing red and blue alternately,then search "K1" in your cell phone and connect it. Can it accept/reject calls by power button? Yes, please click power button to accept calls, and long click 2-3 seconds to reject calls About NEXT/PREVIOUS,VOL+-: Click 2 seconds for next/previous,1 seconds for VOL+- What's in the Box 1 * Bluetooth headset 1 * earhook 1 * charging cable 1 * slave earphone 1 * user manual Important NOTE:1.Charger Voltage&Current :DC output 5V/1A or under 1A2.Please do not use poor quality charger to charge it or it may become hot even out of shape
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