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Quick Details

  • Brand Name: Rambotech
  • Model Number: RU9
  • Style: In-Ear, In-Ear Bluetooth headphones bluetooth
  • Communication: Wireless
  • Connectors: USB
  • Use: Mobile Phone
  • Function: Bluetooth, Microphone, Noise Cancelling, Waterproof
  • Place of Origin: Guangdong, China (Mainland)
  • Color: Black, Blue, Red, White
  • Bluetooth version: 4.1 version
  • Built-in battery: 85mAH
  • Bluetooth chipset: CSR8635
  • Music time: up to 8 hours
  • Charging time: 1.5 Hours
  • Standby time: up to 240 hour
  • Bluetooth Profiles: HFP /HSP/A2DP/AVRCP
  • Working distance: 10 meters
  • Waterproof: IPX7 Waterproof

Packaging & Delivery

Packaging Details: Color box or EVA box packaging or craft paper box packaging
Quantity each carton:100pcs,carton size:51*43*39cm,18KGS per carton
In-Ear Bluetooth Headphone
Delivery Detail: Shipped in 25 days after payment
Product Description

RU9 Newest In-Ear Bluetooth RU9 Wireless Bluetooth Headphone, Dual Bluetooth Bluetooth Earpiece with IPX7 Water-resistant 


  1. V4.1 CSR chipset, IPX-7 waterproof
  2. wireless, microphone, CVC6.0 noise cancellation
  3. superb voice quality, sports, newest bluetooth headphone

Bluetooth 4.1 CSR wireless sports bluetooth headphones.




In-ear design, adjustable ear-hook fit for your ear brings you comfort preferably for running

  • microphone+voice prompt, call and music never missing
  • built in 85mAH battery up to 8 hours long working time,you won't worry low battery frequently.
  • A2DP+AVRCP: Playing stereo music+Remote control
  • Pause the music & Play back automatically when receives an incoming call
  • Call transfer between the headset and Bluetooth mobile phone
  • Automatically connects to the last connected Bluetooth device
  • Music bluetooth headphone charging via Micro USB
  • Long battery life wireless earpiece with mic for phone calls, Rambotech RU9 bluetooth headsets with ear hook USB micro bluetooth
  • Specification


    Bluetooth modelRU9 bluetooth ear buds
    Bluetooth versionbluetooth 4.1 IPX-7 waterproof
    Bluetooth profilesHSP, HFP, A2DP, AVRCP
    Bluetooth chipsetCSR8635
    Music timeup to 8 hours
    Built-in battery85mAH
    Standby time240 hours
    Charging time1.5 hours
    Headphone colorblack, white, red, gray
    supportvoice prompt, phone calls
    selling point

    V4.1, 85mAH battery, sporty, IPX-7 waterproof 

Detailed Images


Company Information

Rambotech is a most professional and responsibility company in China. We focus on Bluetooth Products up to 10 years.

Our product cover:

Bluetooth Adapte
Bluetooth Speaker
BT Stereo Headset
BT Mono Headset
Bluetooth Car Kit
BT Low Energy V4.0
BT Watch&Bracelet
Bluetooth Gadgets


Packaging & Shipping

Packaging and shipping 

Packing in Color Box , EVA  Box or Customized packaging

What’s in the packaging?

Wireless headphone 

3 ear tips(S,M,L)

Charging cable



For OEM, we have several models for your reference below. You can do any packaging you like and we are good at design. Most sellers doing Window packaging and Kraft box. 

                   Standard packaging                                   Window packaging                   Kraft box with EVA box



1. OEM order MOQ: 1000 pcs

2. Quantity each carton:100pcs,carton size:51*43*39cm,18KGS per carton

3. Color: Customize

4. Delivery time: 25 days usually

5. Certificate: CE, BQB 

6. Warranty time: 13 months

7. All products will be tested 3 times before shipment.

8. We're pleased to help to ship to your Amazon warehouse directly. 








Q1: Will you spam my mail-box after joining your news-letter plan?

A: We promise you that we never spam. Joining our new-letter plan, you can get the latest information about bluetooth field, consumer electronics, etc; aslo, you can get out newest products in advance.

Q2: What's your warranty policy?

A: Our warranty period is 12 months. Usually, our RMA rate is below 0.2% since we have strict quality control system.

Q3: How can i become your exclusive dealer?

A: Well, we's say it depends on different regions, for more detailds please consult our sales representatives.

Q4: Do you accept OEM projects?

A:  OEM order is warmly welcomed in Rambotech and we have full experiences in doing OEM projects.

Q5: What kind of payment do you accept?

A: Paypal, TT and western union is most welcome.


Our Advantages




Contact us
Dear Friend,
Hope your business is prosperous!
This is Amy from Rambotech. It would be my pleasure to understand your needs and serve you with our product.
Please do not hesitate to contact me.
Best wishes
Amy  Huang
Skype ID:amyrambotech
Whatsapp/imo:86 13544185318



Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

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China (Mainland)
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Supplier Assessments:
1 Transactions 6,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $140,000
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