Features:<br />Large battery box offers long time enjoyment for music and sports time<br />With battery consumption display for earbuds and charging case<br />Smart touch control, compact and light weight both well fit ear canal without burden<br />Auto-pairing when you pick up<br />Comes with a long battery without embarrassment of frequent charging<br />Ergonomic design and feather-light weight are both precisely designed and measured to make your ears fully comfortable<br />BT 5.0 technology, low latency and low power consumption<br/>Features:<br />Product Name: k1 <br />Chipset: Jerry 6936 <br />BT version: V5.0&#xff08;HFP1.7.HSP1.2.HD Voice.Voice Prompts.A2DP1.3.AVRCP1.6.IOS BATTERY STATE MONITOR.Voice reporting.Multipoint&#xff09; <br />Frequency range: 2.402GHz-2.480GHz <br />Headphone Size(mm): 24mm*17.5mm*15mm <br />Charging box size(mm): 65mm*45mm*36mm <br />colour: black <br />BT headset Weight:12g  <br />Charging compartment &#43; headset weight: 65g&#43;12g<br />bare metal total weight: 77g.<br />Weight &#34;125g (with packaging)<br />Call time: 3-4H <br />Standby time: 180H <br />Music time: 4-5H&#xff08;60% volume&#xff09; <br />Microphone: Yes<br />Speaker:&#xffe0;8mm/16Ω Hi-Fi SPEAKER <br />Battery:Lithium Polymer 50mAh; Lithium Polymer: 400mAh(typ.)<br />LED Indicator:YESed.blue <br />KEY:YES/MFB touch KEY <br />USB: Micro USB <br />Wireless charging:no <br />Product characteristics :Touch / Intelligent power monitoring / Automatic power-on pairing / Up / down song switching / Up / down volume adjustment / Large capacity charging box<br />Support system:IOS/ANDROID/WINDOWS <br />authentication:no<br/>Note:<br />Except for manual connection for the first time, just open the lid when connecting again(On the premise that the phone has a headset pairing record)<br />Please use the charging device below 5V-2.1A to charge the charging case, and do not use the fast charging equipment<br />The actual use may be slightly different depending on the specific situation<br />Please do not immerse the earphones directly into the water to avoid damage<br />Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.<br /> <br />Package List:<br />1 * Pair Earphone (left and right)<br />1 * Charging box<br />1 * Micro-USB cable<br />1 * User Manual