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2025 Newest K21 Bluetooth...
SPECIFICATIONS
Brand Name: AIRERSI
Airersi Model: K21
Style: Ear Hook
Vocalism Principle: Hybrid technology
Origin: Mainland China
Material: Metal
Material: PVC
Material: Plastic
Material: Silica GEL
Hign-concerned Chemical: None
Communication: WireLess
Volume Control: Yes
Category: Earphones & Headphones
Certification: CE
Number Of Drivers: 2
Plug Type: none
Impedance Range: up to 32 Ω
Headphone Pads Material: Silicone
Active Noise-Cancellation: Yes
Sound Isolating: YES
Support Memory Card: No
Waterproof: Yes
Frequency Response Range: 20 - 22000
Magnet Type: Neodymium
Voice assistant built-in: YES
Wireless Type: bluetooth
Line Length: 0
Package List: User Manual
Package List: Charging case
Package List: Charging Cable
Package List: Replaceable Pads Set
Height[mm]: 17
Control Button: Yes
Width[mm]: 58
Codecs: AAC
Codecs: Apt-X
Codecs: Apt-X HD
Driver Diameter: 10
Resistance: 16
Depth[mm]: 90
Sensitivity: 120
Is wireless: Yes
Weight[g]: 20
NFC Technology: no
Connectors: USB
Earcups Type: Semi-open
Bluetooth Version: 5.3
Battery life up to[hours]: 240
Total Harmonic Distortion: 1
Charging Method: Charging case
Max Output: 150
Support APP: Yes
Function: For Internet Bar
Function: Monitor Headphone
Function: for Video Game
Function: Common Headphone
Function: For Mobile Phone
Function: HiFi Headphone
Function: Sport
Function: For Outdoor
Function: For Office
Function: For DJ
Function: For Study
Battery Capacity[mAh]: 150
Maximum wireless range[m]: 10m-20m
With Microphone: Yes
Features: waterproof
Features: With Microphone
Features: Amazon Alexa Support
Features: Apple Siri Support
Features: Detachable Cable
Features: Active Noice Cancelling
Features: Dual Connection
Features: Playback Control
Features: Google Assistant Support
Choice: yes
[Bluetooth 5.3] Adopting Bluetooth 5.3, the transmission of AIRERSI headset K21 is faster, more efficient and stable. You can move freely with up to a 59 ft (18 m) range. Headset features multipoint technology, enjoy the convenience of having up to two devices connected at once.
[CVC8.0 Dual Mic Noise Cancelling] AIRERSI K21 bluetooth headset features dual mic CVC8.0 and ENC noise cancelling technology, knock out 96% noise and deliver clear voice. Enjoy clear calls.
[Echo Cancelling & Clear Voice] AIRERSI Bluetooth headset K21 adopts Echo Cancelling and Consistent Voice Quality technology for clearer calls. Consistent Voice Quality technology conceals Packet-loss and bit error effectively to ensure consistent voice quality even in situations where bluetooth connectivity may be compromised. Hope you enjoy consistent clear call.
[Comfort-Test Design] Rigorously tested for stability and comfort on a wide range of ear shapes means you’ll feel just as comfortable during your first call as your last call. 3 pieces different sizes ear tips to meet your need. Only 0.04lbs / 20g,sleek and pocket-size, K21 headset is perfect for on-the-go communication.
[Long Battery Life] Equipped with a 150mAh battery, allows you to talk freely throughout the day. With up to 16 -18hours of continuous talking on a 1.5 hours single charge. Equipped with a 600mAh charging box, it can provide 4-5 charges for the headphones,K21 Bluetooth Headset works with iPhone, Androidand and all smart phones.
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.
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