Sena Marine Nautitalk Bosun Yachting Headsets Black

The Sena Nautitalk Bosun is the professional-grade crew communication headset built for serious sailing.

Trusted by the entire fleet of the Clipper Round the World Yacht Race 2023–24 as official fleet partner, it's a headset that's been proven in the most demanding offshore conditions imaginable.

Designed for reliable, hands-free crew communication whether you're cruising coastally or crossing oceans. It combines Mesh Intercom 3.0, IPX7 submersible waterproofing and a 20-hour battery into a comfortable, low-profile design that sits securely over the ears without blocking surrounding sounds.

Mesh Intercom 3.0

The Nautitalk Bosun runs on Sena's latest Mesh Intercom 3.0 technology. It delivers reliable crew communication up to 800 metres on open water — extending to 1.6km with six or more users connected. Six-channel Open Mesh mode supports virtually unlimited participants, letting crew switch between different groups and frequencies as needed. Users can move in and out of range without interrupting the rest of the group, making it ideal for dynamic sailing situations where crew are spread across a large vessel or racing course.

HD Audio & Advanced Noise Control

HD speakers and AI-powered Advanced Noise Control combine to deliver clear, intelligible communication even in high-wind or high-noise environments at sea. Whether coordinating from the helm, bow or nav station, every word comes through cleanly.

Built for the Marine Environment

IPX7 submersible waterproofing goes beyond splash resistance — the Bosun can be submerged and keep working. UV-stabilised materials resist sun damage for long-term durability. The unit floats if dropped overboard, with a spare floating marker buoy included in the box for added peace of mind.

Key Features

• Clipper Round the World Race proven - Official fleet partner for the 2023–24 edition, equipping every crew member across the entire fleet.
• Mesh Intercom 3.0 - Up to 800m range on open water, extending to 1.6km with 6+ users. Six open mesh channels with virtually unlimited participants.
• IPX7 submersible waterproof - Fully submersible, not just splash resistant.
• Floats - Unit floats if dropped overboard. Spare floating marker buoy included.
• HD speakers - Clear, high-quality audio for confident communication in all conditions.
• Advanced Noise Control - AI-powered noise cancellation suppresses wind and background noise for clear voice communication.
• 20-hour battery life - Full ocean watch cycles from a single charge.
• Bluetooth 5.2 - Smartphone pairing for music and phone calls alongside the intercom system. Supports HSP, HFP, A2DP and AVRCP.
• Sena Marine app compatible - Manage intercom groups, device settings and firmware updates from your smartphone.
• Low-profile comfortable design - Rounded arms provide a secure head fit while allowing hat or glasses to be worn simultaneously.
• Situational awareness - Design allows surrounding sounds to be heard while remaining connected to the crew.
• Multi-channel communication - Switch between 6 channels and different crew groups as needed.
• UV-stabilised materials - Resists sun damage for long-term outdoor reliability.
• 2-year warranty - Manufacturer backed.

Technical Specifications

• Weight: 124g
• Dimensions: Main module: 165 x 190 x 75mm / Speaker driver: 32mm / Boom mic: 35mm
• Bluetooth: 5.2 (HSP, HFP, A2DP, AVRCP)
• Intercom: Mesh Intercom 3.0 & 2.0
• Range: Up to 800m (1.6km with 6+ users)
• Channels: 6 Open Mesh (virtually unlimited participants)
• Noise Cancellation: AI-based Advanced Noise Control
• Speakers: HD, 32mm driver
• Battery Talk Time: 20 hours (Mesh Intercom)
• Charge Time: 2.5 hours
• Battery Type: Lithium Polymer
• IP Rating: IPX7 submersible
• Operating Temperature: -10°C to 55°C
• Codec: Built-in SBC
• Certifications: CE, FCC, IC, KC
• Warranty: 2 years

What's In The Box

• Nautitalk Bosun headset
• Mic sponge x2
• USB-C magnetic power cable
• Spare floating marker buoy
• Headband strap
• Documentation

Our Mail Order team ship chandlery, yacht parts and sailing clothing around the world. We use the best value couriers available, and we will endeavour to get your products to you as quickly and as cost effectively as possible.

International Orders: International shipping charges will be calculated and advertised at checkout. Pricing may vary. International orders must be placed online and from a location outside of the UK. Our mailorder team are unable to facilitate the placement of international orders. 

UK Standard Delivery

• UK Mainland 0 - 2Kg (small jiffy) £3.95 Royal Mail Service. Despatch within 3- 5 working days, delivery in 7-10 working days for orders under £100.00. This is an estimated delivery window from our chosen courier.
• UK Mainland 0 - 30KG £5.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days. This is an estimated delivery window from our chosen courier.
• UK Mainland 0 - 30KG OVER 1.2m LENGTH £15.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days. This is an estimated delivery window from our chosen courier.
• UK Mainland 30KG+ Price on request
• UK Mainland Next Day 0 - 30KG £9.95 Courier service with signature, orders must be placed before midday. This is an estimated delivery window from our chosen courier.
• UK Mainland Next Day 0 - 30KG OVER 1.2m length £19.95 Courier service with signature, orders must be placed before midday. This is an estimated delivery window from our chosen courier.
• UK Mainland Saturday 0 - 30KG £19.95 Courier service with signature, orders must be placed before Friday. This is an estimated delivery window from our chosen courier.
• Northern Ireland, Highlands & Islands 0 - 2KG (small jiffy) £3.95 Royal Mail Service. Despatch within 3- 5 working days, delivery in 7-10 working days for orders under £100.00. This is an estimated delivery window from our chosen courier.
• Northern Ireland, Highlands & Islands 1 - 30KG £10.95-£14.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
• Northern Ireland, Highlands & Islands 1 - 30KG OVER 1.2m length  from £24.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
• Northern Ireland, Highlands & Islands 30KG+ Price on request
• Channel Islands 0 - 2KG (small jiffy) £5.95 Royal Mail Service Despatch within 3- 5 working days, delivery in 7-10 working days for orders under £50.00
• Channel Islands 1 - 30KG £19.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
• Channel Islands 30KG+ Price on request

UK Exceptional Delivery

• UK Mainland; Antifoul & paints £5.95
• UK Mainland; Inflatable dinghy £10.00
• UK Mainland; Liferafts £29.95
• UK Mainland; Flares £49.95
• Northern Ireland, Highlands & Islands; Antifoul & paints £9.95
• Northern Ireland, Highlands & Islands; Inflatable dinghy price on request
• Northern Ireland, Highlands & Islands; Liferafts price on request
• Northern Ireland, Highlands & Islands; Flares not available to ship at this time
• Channel Islands; Antifoul & paints £16.95
• Channel Islands; Inflatable dinghy price on request Channel Islands; Flares not available to ship at this time

Ship to Store service; You can now order from our website for collection from one of our 8 Force 4 locations. Simply select “Ship to Store” at checkout and your goods will be ready for collection within 5 working days. This service is free however may exclude some hazardous or special order goods.

For further delivery information click here.

Standard Returns

If you are not entirely happy with your purchase, we will exchange or refund your goods in full, provided that the items are returned within 14 days of receipt.*

Please check the condition of goods on arrival - we are unable to accept goods damaged during shipping after 14 days.

Returned goods must be packaged securely, with all original packaging undamaged and in a saleable condition i.e. shoe boxes must be in the same condition as when received.

Goods must be unused and security seals intact.*

If you would like to return goods because they were ordered incorrectly or if clothing does not fit, return postage will be at your expense. If you would like us to replace the goods with another size or colour, we will charge carriage on the replacement.

Please be aware that some navigational and safety products may be dated, and as such a full refund may in some cases not be possible. If you are purchasing dated navigational charts we suggest you contact us for more information.

Faulty Goods

If you receive your goods and believe them to be faulty, please contact us straight away with a brief description of the problem. If we require you to return the product for a replacement, we will send you a pre-paid Royal Mail label for delivery back to us. Unfortuantely we cannot send the courier back to collect the items.

Returning goods to Force 4 is easy!

1. Please contact us by ringing 0345 1300 710 or email on [email protected]. This way we'll be able to determine whether you would like to return the product for a refund or whether you'd like to exchange the product. We are unable to process the return of faulty goods that we're not expecting.
2. We'll then give you a returns number. This returns number will need to be clearly marked on the outside of your parcel so it can be identified on arrival. Please note, failure to mark a returns reference number on the outside of your parcel may result in a delay in processing your return.
3. Don't forget your proof of postage, just in case!
4. Once we receive the item we'll be able to proceed with a refund or an exchange.

*this excludes faulty goods with manufacturers defects. If goods are found to be faulty during use, after the returns period, please just give us a ring on 0345 1300 710 and we'll be happy to help.

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