Introduction
This manual provides detailed instructions for the use and maintenance of your Instiwitt B29 Bluetooth Earphones. Please read this manual thoroughly before using the product to ensure proper operation and to maximize its lifespan.
Package Contents
Verify that all items are present in the package:
- 1 x Pair of Wireless Earbuds
- 1 x Charging Case
- 1 x USB-C Charging Cable
- 1 x Instruction Manual
- 1 x Package Box
Product Overview
The Instiwitt B29 Bluetooth Earphones feature a compact design with a portable charging case. The earbuds are equipped with touch controls and an ergonomic fit.

Image: Instiwitt B29 Bluetooth Earphones with their charging case. The case is black with red devil horns and glowing red eyes, indicating power or charging status. The earbuds are also black with red accents.

Image: A transparent view of an Instiwitt B29 earbud, highlighting its internal sound system components for premium audio delivery.

Image: An earbud shown with three different sizes of eartips (S, M, L), demonstrating the lightweight design and customizable fit for user comfort.
Setup
1. Charging the Earphones and Case
Before first use, fully charge the earphones and the charging case.
- Place both earbuds into the charging case. Ensure they are properly seated; a red light on the earbuds indicates charging.
- Connect the USB-C charging cable to the charging port on the case and to a power source.
- The indicator lights on the charging case will show the charging status. A full charge takes approximately 1.5 hours.

Image: The Instiwitt B29 charging case with a USB-C cable, illustrating the charging connection and indicating 35 hours of total playtime.
2. Pairing with a Bluetooth Device
The earphones will automatically enter pairing mode when removed from the case.
- Open the charging case and remove both earbuds. They will automatically power on and attempt to pair with each other.
- On your device (e.g., smartphone, tablet), enable Bluetooth and search for available devices.
- Select "B29" from the list of found devices to connect.
- Once connected, a voice prompt will confirm successful pairing.

Image: Instiwitt B29 earbuds displayed next to a smartphone screen showing Bluetooth settings, indicating the pairing process with "B29" listed as an available device.
Operating Instructions
The Instiwitt B29 earphones feature touch controls for various functions. The touch sensitive area is located on the outer surface of each earbud.

Image: A diagram illustrating the touch control functions for the Instiwitt B29 earbuds, showing different tap patterns for various commands like volume, track control, and call management.
Music Playback Controls
- Play/Pause: Quickly tap 1 time on either the Left (L) or Right (R) earbud.
- Next Song: Double-tap (2 times) on the Right (R) earbud.
- Previous Song: Triple-tap (3 times) on the Right (R) earbud.
- Volume Up: Double-tap (2 times) on the Left (L) earbud.
- Volume Down: Triple-tap (3 times) on the Left (L) earbud.
Call Management
- Answer Call: Quickly tap 1 time on either the Left (L) or Right (R) earbud.
- Reject Call: Long press for 2 seconds on either earbud.
- Hang Up Call: Quickly tap 1 time on either the Left (L) or Right (R) earbud during a call.
Other Functions
- Switch Music/Game Mode: Tap 5 times on either the Left (L) or Right (R) earbud.
- Voice Assistant (Siri/Google Assistant): Long press for 2 seconds on either earbud (after rejecting a call, or when not on a call).

Image: Two individuals engaged in a conversation, with one wearing Instiwitt B29 earbuds, illustrating the product's clear call quality.
Maintenance
Proper maintenance ensures the longevity and performance of your earphones.
Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
- Ensure charging contacts on both earbuds and case are clean and free of debris.
Water Resistance (IPX5)
The Instiwitt B29 earphones are rated IPX5 water-resistant, meaning they can withstand splashes and sweat. They are suitable for workouts and light rain.
- Do not submerge the earphones in water.
- Ensure the charging port on the case is dry before charging.
- Water resistance is not a permanent condition and may decrease as a result of normal wear.

Image: Instiwitt B29 earbuds shown with water droplets, indicating their IPX5 water resistance rating, suitable for sweat and splashes.
Storage
Store the earphones in their charging case when not in use to protect them and keep them charged.
Troubleshooting
If you encounter issues with your Instiwitt B29 earphones, refer to the following common solutions:
Earbuds Not Pairing with Each Other
- Ensure both earbuds are charged.
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then open the lid and remove them again. This should reset their connection.
Earbuds Not Connecting to Device
- Make sure Bluetooth is enabled on your device.
- Ensure the earbuds are charged and out of the charging case.
- Forget "B29" from your device's Bluetooth settings and attempt to pair again.
- Move your device closer to the earbuds (within 10 meters).
No Sound or Low Volume
- Check the volume level on both your device and the earbuds.
- Ensure the earbuds are properly seated in your ears.
- Clean any debris from the earbud speaker mesh.
Charging Case Not Charging Earbuds
- Ensure the charging case itself is charged.
- Verify that the earbuds are correctly placed in the charging slots and that the charging contacts are clean.
- Check if the charging cable is securely connected to the case and power source.
Specifications
| Feature | Detail |
|---|---|
| Model Name | YG-US-B29 |
| Brand | Instiwitt |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.1 |
| Bluetooth Range | 10 Meters |
| Noise Control | Active Noise Cancellation (CVC8.0) |
| Battery Life (Earbuds) | Up to 4 hours per charge |
| Total Playtime with Case | Up to 40 hours (with 5 additional full charges from case) |
| Charging Case Capacity | 350mAh |
| Charging Time | Approximately 1.5 hours |
| Water Resistance Rating | IPX5 (Sweatproof) |
| Control Type | Touch Control |
| Microphone | Built-in |
| Included Components | Wireless earbuds, charging case, USB-C cable, instruction manual |
| Product Dimensions | 2.36 x 2.36 x 1.57 inches |
| Item Weight | 3.84 ounces |
Warranty and Support
Instiwitt products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Instiwitt website.
You can also visit the Instiwitt Store on Amazon for more product information and support resources.





