Features Description:Ultra-lightweight for life in motionFull-bodied sound Designed with a refined 13mm powerful dynamic driver, the E3110 plays crisp, balanced sound with impressively deep bass. Lighter than A4 paper Exceptionally lightweight at just 3.2g each, the E3110 is comfortable and unintrusive. It’s designed to fit seamlessly into your life. Clearer conversations Whether you’re in a noisy coffee shop or working from home, take important calls while on the go. Enhanced voice pickup improves voice clarity so you can hear and be heard as if you’re talking face-to-face. Help is always on standby Your trusty assistant is just a voice command away. With Google Assistant and Siri compatibility, get directions, check your calendar, or make a call without needing to take your device out. Listen separately The E3110 is designed to give you the freedom to switch between single-ear and double-ear seamlessly. Share your music with your friend while you walk apart or wear only one earphone at a time. Take music further Flawless connectivity:Bluetooth 5.1 ensures stable and seamless connectivity, a better wireless range with 10 meters wireless listening range, it gives you full freedom with your earphones. Up to 16 hours* of sound:Four hours of playtime with the earphones, plus an additional 12 hours of play time using the sleek charging case. The earphones start charging the moment they’re put inside. Rain or shine:An IP44-rated splash-proof design means rain or sweat won’t interrupt your music marathon, your calls, or a workout – whatever the weather. Features Dive deep into music:These compact earbuds deliver rich, clear sound and punchy bass for an absorbing listening experience. Clearer voice calls:The Environmental Noise Cancelling feature enhances your voice and blocks unwanted surrounding noise on your calls, so everybody can hear you better. Made for all-day wear:The sleek and ultra-lightweight design ensures total comfort no matter what you are doing. Specification Model E3110 Wearing styles True Wireless Earphones Ear coupling Concha Frequency response 20 Hz to 20KHz Transducer principle Dynamic, closed Transducer size 13mm Sound pressure level(SPL) 100dB3dB Impedance 32Ohm Microphone principle MEMS x 2 Ingress protection of the earduds IP44 Weight Left earbud; approx. 3.2gRight earbud; approx. 3.2gCharging case; approx. 27.6g Bluetooth Version Bluetooth 5.1 Transmission frequency 2.402 GHz to 2.480 GHz Profiles HSP, HFP, AVRCP, A2DP Codec SBC, AAC Effective range Line of sight approx. 30ft (10m) Power Operating time 4hrs (music playback via A2DP) with rechargeable batteries of the earphones*16hrs with a rechargeable battery of the charging case* Power supply Built-in Lithium rechargeable batteries, 3.7VLeft earbud:30mAhRight earbud: 30mAhCharging case: 250mAh Charging time Earphones: approx. 1.5 hoursCharging case: approx. 1.5 hours