








EPPFUN – AK3040 TOPEST Bluetooth 6.0 USB-C Audio Transmitter
Bluetooth 6.0 USB-C audio transmitter
Auracast, LE Audio and Classic Bluetooth modes
One-to-many Auracast audio broadcasting
aptX Lossless, LDAC and LC3 codec support
Mobile app and physical button controls
Colour-coded LED status indicators
Includes a compact 3.5 mm analog microphone
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Pickup available at Naraina, New Delhi
You will be notified once the product is available for pickup, as per the pre-order timeline.
EPPFUN – AK3040 TOPEST Bluetooth 6.0 USB-C Audio Transmitter
Shipping & Delivery
Free Shipping on Prepaid Orders
Same day dispatch, if ordered before 2:00 PM.
Order Placed before 2:00 PM will be shipped within 24 hrs. (Except Sunday and Holidays)
Cash on Delivery Available
Cash on delivery applicable for order from ₹ 500 to 15000
Earn upto 5% of order value
With GST invoice, save up to 28% on business purchases
RETURN POLICY
10 Days Replacement Policy for Manufacturing defects.
All products are covered by 10 Day Replacement Guarantee. This product is eligible for a free replacement, in case you receive a damaged, defective or different item. Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement. Accessories like cables and eartips are not backed up the manufacturer's warranty.
Please note that physical damage cases need to be brought to our notice within 24 hours.
Simply Contact us through the chat window if you find any issues with your order.
Description
The EPPFUN AK3040 TOPEST is a compact Bluetooth 6.0 USB-C audio transmitter designed to send audio wirelessly from compatible smartphones, tablets and computers to Bluetooth headphones or earphones. It offers three selectable transmission modes—Classic Bluetooth, LE Audio and Auracast—allowing users to select the appropriate connection according to the capabilities of their receiving device.
Classic Bluetooth mode supports a comprehensive selection of audio codecs, including SBC, aptX, aptX HD, aptX LL, aptX Adaptive, aptX Lossless and LDAC. LE Audio mode supports LC3 and aptX Lite, while Auracast mode enables the same audio broadcast to be received by multiple compatible devices simultaneously. Auracast transmission supports 24kHz and 48kHz settings and also provides password configuration for controlled broadcast access.
The transmitter can be operated directly through its physical controls or managed using the EPPFUN mobile application. The M button switches between transmission modes and audio codecs, while the C button controls playback, microphone functionality and resetting. Color-coded LED indicators make it easy to monitor pairing, connection, operating mode and active codec status.
Firmware can be upgraded through online OTA updates or the official EPPFUN website. The package also includes a compact 3.5 mm analog microphone that can be connected to a compatible controller or device microphone input for voice communication.

THREE SELECTABLE BLUETOOTH AUDIO MODES

EXTENSIVE HIGH-QUALITY CODEC SUPPORT

APP AND HARDWARE BUTTON CONTROLS

USB-C PLUG-AND-PLAY WITH LED FEEDBACK
Box Content
1x Bluetooth Transmitter
1x Mic
Warranty
1 YEAR WARRANTY
Don't worry, EPPFUN – AK3040 TOPEST Bluetooth 6.0 USB-C Audio Transmitter comes with a 1 Year warranty against manufacturing defects. We guarantee that every product on Concept Kart is genuine and backed by the Manufacturer's warranty.
Read more about Concept Kart's warranty policy.
Shipping Policy
FREE SHIPPING ON ALL ORDERS
At Concept Kart, we offer FREE standard shipping on all orders across India. Orders placed before 2 PM are usually dispatched on the same working day, while orders placed after 2 PM are dispatched on the next working day (excluding Sundays and public holidays) from our Delhi warehouse.
Delivery usually takes 1–2 business days in Delhi, the next working day in metro cities, and 2–7 business days in other locations after dispatch. We use trusted courier partners, including BlueDart and Delhivery, and share tracking details via email or WhatsApp. For prepaid orders, OTP verification is required at delivery for added security. Share the OTP only after receiving your package.
COD is available for orders between ₹1,500 and ₹10,000, with cash handling charges of ₹50 (up to 1 kg) and ₹100 (above 1 kg), displayed at checkout.
Delivery may be delayed due to festivals, extreme weather, floods, protests, or courier disruptions. Pre-orders follow the estimated timelines mentioned on their product pages.
For shipping or delivery assistance, contact customercare@conceptkart.com with your order number.

Rainy weather may cause minor delays — thank you for understanding!


