1. Encryption Function Support

2. Specifations

3. Applicable Phone Model

PvR supports the following phone modes:

Reminder: PvR is applicable to all series phones of iPhone, as well as most phones using Qualcomm 8XX series or Kirin 9XX series processors.

4. Select SIM Card

Please choose the SIM card that uses UMTS network or supports Volte function. Generally, it is recommended to open Volte function for better performance.

5. Use Suggestions For Encrypted Calls

To obtain better sound quality of encrypted calls, please try to follow the following suggestions：

1. While making an encrypted call, please turn off WLAN as much as possible;
2.  For dual-card dual-standby phones, the SIM card used for making encrypted calls should be set as the preferred SIM card for the mobile data network
3.  In areas with relatively large electromagnetic interference, such as roadsides, stations, airports, etc., the mobile phone should be as close as possible to the PvR when making a encrypted call.
4. When making an encrypted phone call in a noisy environment or while walking, please try to speak calmly and at a lower speed.
5. PvR cannot be used while charging

6. Voice Message Encryption Function Support

7. Use Suggestions For Encrypted Voice Messages

1. Indicator light “SEC” will start flashing after 3 seconds since the time of switching from encrypted call mode to encrypted voice message mode.
2. When sending a voice message and before starting to speak, please wait 1~2 seconds after pressing the record button. And delay 1~2 seconds to release the record button after ending the speech, so as to ensure the integrity of encrypted voice message.
3. Please turn off WIFI if the sound quality is in poor condition.
4. Do not speak directly to the microphone hole of the PvR, so as to avoid the deterioration of the encrypted voice quality caused by the airflow.
5. If there is a stuck or loss of sound, please try to play the voice message repeatedly.

8. Limitations

1. PvR can support most of the high-end models of mainstream brand mobile phones, but it does not rule out that some models of mobile phones do not match this product due to their audio characteristics or Bluetooth communication characteristics, resulting in poor sound voice quality.
2. Since PvR is connected to the mobile phone via Bluetooth, the Bluetooth signal is very susceptible to external electromagnetic interference (especially the 2.4G WiFi signal), which will cause worse sound quality. Therefore, it is recommended that the user turn off the mobile phone WLAN and shorten the distance between the phone and PvR as much as possible during the encrypted call.
3. As the network conditions and technical status of mobile operators in various countries vary greatly, we can’t guarantee that PvR can make cross-border encrypted calls between all countries, nor can we guarantee that PvR can make roaming encrypted calls in all countries. When the sound quality of  cross-border or roaming encrypted call is not good enough, you can try to use VoIP for encypted call. It is recommended to use “WhatsApp” as the communication tool.
4. PvR doesn’t support CDMA or CDMA2000 network.

9. Restrictions

1. 1. It is strictly prohibited to bring the overseas-version product into China mainland; it is strictly prohibited to resell the overseas-version product to China mainland; and for overseas OEM/ODM partners, it is strictly prohibited to sell the products containing ReliaSpeak technology solutions to China mainland.
   2. It is strictly prohibited to use the purchased products, trial sample products or technical solutions for military purposes.
   3. It is strictly prohibited to use the purchased products, trial sample products or technical solutions for illegal, criminal or terroristic activities or for any activity that violates Chinese laws and regulations or the laws and regulations of the countries in which the products are used.

10. Important Notice

As a professional voice encryption device, PvR Bluetooth Voice Protector (Hereinafter referred to as”PvR” ) can effectively protect the privacy of your call, but the sound quality of the encrypted call is not as good as the original voice; In addition, the sound quality of PvR is also affected by factors such as mobile phone voice enhancement function, cellular network signal strength, voice coding conversion of electromagnetic interference, data network latency or jitter, packet loss, etc., so we cannot guarantee that you can get good sound quality under any circumstances.

Before purchasing or using this product, please read this article carefully. If you have any questions, please feel free to contact us:

Tel: 86-10-88334733
Email: [email protected]

The goods will be shipped out by DHL / FedEx express or other courier companies whose waybill is traceable from the origin country of China within Five working days once you ordered. For import tax, if any, will be borne by the customer.

If there is a quality problem in normal use, we provide return and replacement service within  30 days from the date of receiving. When returning or replacing, please ensure that the products, trademark marks and accessories are complete. For after-sales service, please contact: [email protected]