Professional smart communication terminal device on desk

You are here: Home » Products » IP Phone » Screenless WiFi SIP Phone for Kids | Anti-Addiction Device

SIP IP Phone for Kids & Home Office-Dual Band WiFi Wired LAN

Screenless WiFi SIP Phone for Kids | Anti-Addiction Device

100% Screen-Free & Anti-Addiction: Eliminates blue light hazards and digital distractions, protecting children's eyesight.

SIM-Free Dual-Band WiFi Calling: Operates entirely over standard 2.4GHz & 5GHz networks to bypass recurring monthly carrier fees.

Parental App Control: Parents can easily set up a call whitelist through the companion app, ensuring children can only make and receive calls from approved contacts.

B2B Global OEM/ODM Ready: Full engineering support for hardware, software, and housing customization tailored for global suppliers.

Price: Inquire for Wholesale / Volume Discount
Availability: Custom Production (OEM/ODM Available)


Model:	KS21-A
Availability:



Inquire

General Details

Technical Data

Introduction

Product Overview

Developed by Shandong Kaer Electric Co., Ltd., the KAER KS21-A is recognized as a premier choice for businesses searching for the best screen-free phone for kids. Featuring full intellectual property rights, this innovative screen-free device provides a seamless voice connection without exposing children to internet hazards or screen addiction. Crafted from impact-resistant, child-safe ABS and TPU composite materials, it is perfectly engineered for independent operation by young hands.
Technical Specifications

◆Connectivity: Next-generation Dual-Band WiFi (802.11 a/b/g/n/ac/ax, 2.4GHz & 5GHz) & Wired LAN.
◆Protocol: Strict adherence to standard SIP v1/v2 (RFC2543/RFC3261) for universal carrier-grade compatibility with mainstream IP-PBX, Cloud IMS, and Softswitch platforms.
◆Audio Performance: Premium HD Voice equipped with the Opus audio codec.
◆Management: Effortless remote configuration through an intuitive Web UI portal alongside automatic Over-The-Air (OTA) firmware upgrades to minimize after-sales maintenance costs.
◆Display: Ultra-minimalist 3-character light array for Caller ID and device status.

Application

For Safe Home Communication

:Offers parents a dedicated, distraction-free line to check in on children. It eliminates recurring SIM card costs, utilizing existing home dual-band WiFi networks for high-fidelity voice transmission.

View More
For Smart Campus & Schools

Serves as an ideal, low-maintenance campus intercom system. School administrators can restrict dialing permissions and deploy inbound call whitelists to ensure full student safety in kindergartens and daycare centers.

View More

FAQs

How does the device show Caller ID without a traditional screen?

It utilizes an ultra-minimalist, built-in 3-character light indicator array that securely displays short codes, numbers, or statuses without exposing minors to blue light or digital browsing hazards.
Can parents restrict calling permissions for security?

Yes. Through the parental app control, parents can enforce strict inbound/outbound call whitelists, block unauthorized numbers, and control device-level permissions remotely.
Does it require any monthly carrier fees or SIM subscriptions?

No. The device acts as a standalone wireless IP station operating entirely over existing corporate WiFi or LAN networks, completely bypassing recurring SIM card costs.
What standard telecom platforms is the KS21-A compatible with?

It strictly adheres to standard SIP v1/v2 (RFC2543/RFC3261) protocols, offering verified plug-and-play interoperability with mainstream IP-PBX, Cloud IMS, and Softswitch platforms.

Request a Factory Quote & Sample Inventory Today!

Looking for a verified manufacturer for screen-free kids' telecom? Shandong Kaer Electric Co., Ltd. offers competitive pricing, reliable lead times, and flexible OEM/ODM customization for global school suppliers and B2B distributors.

Contact our corporate sales team today to request a product sample and catalog.

Parameter		Details
Complete Machine	Reference Dimensions	Main unit: 1725032mm Base: 1727927.5mm mm * 172 * 59mm
Complete Machine	Case Material	ABS + TPU
SIP	Audio Parameters	HD Voice
		Encoding/Decoding: G.711/722/729, AMR-NB/WB, iLBC, Opus
		With automatic echo cancellation
		DTMF: In-band,Out-of-band,SIP INFO
	Phone Features	Supports 1 SIP account
	Phone Features	Incoming/outgoing calls ; caller ID, ringtone
	User Interface	SIP status indicator light, WiFi status indicator light
	User Interface	SIP status indicator light, WiFi status indicator light
	Network & Security	Supports SIP v1 (RFC2543) and SIP v2 (RFC3261)
		Supports NAT: STUN, TURN, ICE
		Supports RTP/RTCP/SRTP
		Supports Qos
		Supports IPv4 and IPv6
	Configuration Management	Supported configuration modes: WEB
		Restore factory settings and restart
		OTA
Network	WiFi	802 b/g/n/ac/ax, 2.4GHz & 5GHz
Voice	Trumpet	1
Voice	MIC	1
Power Supply	Input	AC 100~240V
Power Supply	Output	DC 5V / 1A
Other	Operating Humidity	10%-95%
	Atmospheric Pressure	86-106 kPa
	Operating Temperature	- 0 ℃ - + 45 ℃
	Storage Temperature	-20℃ - +60℃

General Details

Technical Data

Screenless WiFi SIP Phone for Kids | Anti-Addiction Device

Our Email Address

Contact Us By WhatsApp

Quick Links

Product Category

About KEAR

Other Links