"Features

Up to 50-hr Playtime-Jam to Music All Day and Night

Necklace 4 provides an ultra long music-listening experience. Up to 50-hour playtime allows you to charge your Necklace 4 once a week.

Charge 10 Mins, Play 10 Hours-Charge as A Flash

Just 10-min fast charging can provide 10-hr music listening, making you music play on and on.

Noise Cancellation in Calls-Designed for Clear Calls

Necklace 4 is featured with proprietary noise-cancelling algorithm and inline microphone, which helps reducing surrounding noise and providing clear voice in calls.

Magnetic Lock-Intelligent Switch

Each earbuds has a built-in magnet, allowing you to get away from tangle-free carrying, get easy storage, and make a intelligent switch.

Dual EQ–Switch as You Like

Short press the Mode button “M” once to switch between Normal Mode and Havy Bass Mode.

HavyBass™ 2.0–Unrivalled Deep Bass

The 2nd generation Havy Bass algorithm will provide you an extraordinary experience of thumping bass like never before!

Low-latency Game Mode-Audio and Video Sync in Game

Game mode provides fluent experience while playing video or games, helping you capture your best gaming moments.

Dual Device Connection-Freely Switch to the Other Devices

Necklace can connect 2 devices at the same time. Never worry about missing the calls from another phone.

IPX5 Waterproof & Sweat Protection-Not Afraid of Water and Sweat

Featured with IPX5 waterproof and inner sweat-resistant nano-coating, Necklace 4 is created to withstand the test of time, accompanying you through rain and workout time.

Specifications

BT Version V5.3

Wireless Range >10m

Battery Capacity 350mAh

Play Time Up to 50 hours"