FCC ID: 2AMPL-QFIT Wireless Neckband Earphone

by: Dongshun Tech Development Limited latest update: 2022-12-27 model: QFIT

Two grants have been issued under this FCC ID from 02/01/2019 to 12/27/2022 (this is one of three releases in 2022 for this grantee). Public details available include manuals, frequency information, and internal & external photos. some products also feature user submitted or linked troubleshooting guides, password defaults, instructions, warrantee terms, & drivers.

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all	frequencies		exhibits	applications
		manual

all exhibits 11
1 ~ 2022-12-27 0
2 ~ 2019-02-01 11

app s				submitted / available
1 2	User-Manual	Users Manual	pdf	698.96 KiB	January 02 2019
1 2		Test Report	pdf		January 02 2019
1 2		Test Report	pdf		January 02 2019
1 2		RF Exposure Info	pdf		January 02 2019
1 2		External Photos	pdf		January 02 2019
1 2		Internal Photos	pdf		January 02 2019
1 2		Test Setup Photos	pdf		January 02 2019
1 2		Cover Letter(s)	pdf		January 02 2019
1 2		Cover Letter(s)	pdf		January 02 2019
1 2		ID Label/Location Info	pdf		January 02 2019
1 2		Cover Letter(s)	pdf		January 02 2019

exhibit
download
text

1 2

User-Manual

Users Manual

pdf

698.96 KiB

January 02 2019

Packing List Wireless Earphone User Manual Product Model: QFIT 1. Bluetooth Earphone----------------------------------------------------------- 1 set 2. Charging cable ------------------------------------------------------------------ 1 set 3. User's manual ------------------------------------------------------------------- 1 copy Product Specifications Bluetooth:

V 4.2 (Single Mode) IC (What does this stand for) JL Frequency:

SNR 20Hz-20KHz 105dB/3dB Speaker specifications (What does this stand for) 4.0*1.5mm Signal to Noise Ratio:

-42dB/3dB Support mode (What does this stand for) A2DP / HFP / HSP / AVRCP / L2CAP Working voltage (What does this stand for) 3.7V0.5V Playback Time:

Standby Time:

Up to 3 hours Up to 160 hours Charging Current:

60mA Battery Type:

3.7V Li-polymer rechargeable battery Battery Charging Voltage:

5V DC max. Main function Main Material Operating Instructions Initial Pairing Wireless Bluetooth, hands-free with mic ABS 1. Press & hold the POWER button for 3 seconds to turn ON until the red and blue lights flash (This means the headset has entered pairing mode) 2. Turn your Bluetooth ON (On your device), search and select headset. 3. Click and pair. 4. After successfully pairing, you will hear a tone. The headset light will flash blue. Please Note: If required, enter the password 0000. Select OK or YES to pair your device. How to Power ON Your Headset Press & hold the POWER button for 3 seconds to turn on the headset. How to Power OFF Your Headset Once the headset is on, press & hold the POWER button for 3 seconds to turn off the headset. Auto Re-Connect 1. Turn your devices Bluetooth ON, before turning on the headset 2. The headset will connect automatically to the last paired device Play/Pause Music In standby mode, click the POWER button to play music, and press the POWER button to pause. Switch Songs When playing music, press the plus (+) or minus (-) buttons to switch songs up and down. Adjust Volume To adjust the volume on headset, press and hold the plus (+) or minus (-) button to increase or decrease the volume. Answer/End/Reject Call Answering Call: During an incoming call, click the POWER button to answer the call. Ending Call: When on a call, click the POWER button to hang up the phone. Reject Call: During an incoming call, Press and hold the POWER button for 2 seconds to refuse a call. Redial While on standby or playing music, double-click the POWER button to dial the last call in your call log. Low battery prompt When the headset battery is low, you will hear a battery low tone. Light Indicator Red Light: When charging (when fully charged red light will go out). Blue Light: flashes slowly when music is playing Warnings 1. Charge in a safe environment. 2. When the headset light turns blue, please separate the headset from the charging cable as soon as possible to avoid damage to the headset. 2. When using the headset to listen to music or place calls, please pay attention the volume. Listening at a high volume may affect hearing. 3. To avoid damage to the battery, keep the battery fully charged when the product is not used for a long time 4. Avoid leaving headset in direct sunlight or in a dusty environment. Federal Communications Commission (FCC) Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate this equipment. RF exposure warning This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. The equipment must not be co-located or operating in conjunction with any other antenna or transmitter.

		frequency	equipment class	purpose
1	2022-12-27	2402 ~ 2480	DSS - Part 15 Spread Spectrum Transmitter	Original Equipment
2	2019-02-01	2402 ~ 2480	DSS - Part 15 Spread Spectrum Transmitter

Application Forms

app s	Applicant Information
1 2	Effective	2022-12-27
1 2	Effective	2019-02-01
1 2	Applicant's complete, legal business name	Dongshun Tech Development Limited
1 2	FCC Registration Number (FRN)	0026643338
1 2	Physical Address	FLAT/RM 704, 7/F BRIGHT WAY TOWER 33 MONG KOK ROAD MONG KOK, KL, HONGKONG
1 2		2F,building7,Huayisheng Industrial Park,Fenghuang
1 2		FLAT/RM 704, 7/F BRIGHT WAY TOWER 33 MONG KOK ROAD
1 2		Shenzhen, N/A 518103
1 2		HONGKONG, N/A
1 2		China

app s	TCB Information
1 2	TCB Application Email Address	j******@eurofins.com
1 2	TCB Application Email Address	t******@timcoengr.com
1 2	TCB Scope	A4: UNII devices & low power transmitters using spread spectrum techniques

app s	FCC ID
1 2	Grantee Code	2AMPL
1 2	Equipment Product Code	QFIT
1 2	Equipment Product Code	QFIT

app s	Person at the applicant's address to receive grant or for contact
1 2	Name	R****** F******
1 2	Name	U****** F****
1 2	Telephone Number	(86)0******** Extension:
1 2	Telephone Number	(86)0********
1 2	Fax Number	0755-********
1 2	E-mail	m******@dshuntech.com
1 2	E-mail	P******@dshuntech.com

app s	Technical Contact
1 2	Firm Name	MRT Technology (Suzhou) Co., Ltd
1 2	Name	R**** W**
1 2	Physical Address	D8 Building, Youxin Industrial Park, No.2
1 2		Suzhou, 33619
1 2		China
1 2	Telephone Number	86-51******** Extension:
1 2	Fax Number	86-51********
1 2	E-mail	r******@mrt-cert.com

app s	Non Technical Contact
1 2	Firm Name	MRT Technology (Suzhou) Co., Ltd
1 2	Name	R**** W**
1 2	Physical Address	D8 Building, Youxin Industrial Park, No.2
1 2		Suzhou, 33619
1 2		China
1 2	Telephone Number	86-51******** Extension:
1 2	Fax Number	86-51********
1 2	E-mail	r******@mrt-cert.com

app s	Confidentiality (long or short term)
1 2	Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?:	Yes
1 2	Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?:	No
	if no date is supplied, the release date will be set to 45 calendar days past the date of grant.

app s	Cognitive Radio & Software Defined Radio, Class, etc
1 2	Is this application for software defined/cognitive radio authorization?	No
1 2	Equipment Class	DSS - Part 15 Spread Spectrum Transmitter
1 2	Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant)	Wireless Neckband Earphone
1 2		Wireless Earphone
1 2	Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application?	No
1 2	Modular Equipment Type	Does not apply
1 2	Purpose / Application is for	Original Equipment
1 2	Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization?	No
1 2	Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization?	No
1 2	Grant Comments	Output Power listed is peak conducted.
1 2	Grant Comments	Power Output listed is conducted. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.
1 2	Is there an equipment authorization waiver associated with this application?	No
1 2	If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded?	No

app s	Test Firm Name and Contact Information
1 2	Firm Name	Dongguan Yaxu (AiT) Technology Limited
1 2	Firm Name	MRT Technology (Suzhou) Co., Ltd.
1 2	Name	C** T****
1 2	Name	M** C****
1 2	Telephone Number	+86 0********
1 2	Telephone Number	+86-5******** Extension:
1 2	E-mail	i******@aitek.org.cn
1 2	E-mail	m******@mrt-cert.com

Equipment Specifications
	Line	Rule Parts	Grant Notes	Lower Frequency	Upper Frequency	Power Output	Tolerance	Emission Designator	Microprocessor Number
1	1	15C		2402.00000000	2480.00000000	0.0006000
	Line	Rule Parts	Grant Notes	Lower Frequency	Upper Frequency	Power Output	Tolerance	Emission Designator	Microprocessor Number
2	1	15C		2402.00000000	2480.00000000	0.0004000

some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details