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MK-7 Buddy-Line - Portable Two Diver Air Intercom (4 Wire Only)

MK-7 Buddy-Line - Portable Two Diver Air Intercom (4 Wire Only)

Regular price $1,639.99
Regular price Sale price $1,639.99
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Model#: 900104-000

The MK-7 BuddyLine is a compact, self-contained one or two-diver air intercom. It will allow clear communications in the 4-wire mode (round robin) and includes the THB-7A Deluxe Headset (with boom mic). The MK-7 BuddyLine was specifically designed for Search & Rescue Teams to have an underwater communication device that needs little set-up time.

The 2 watts of power is managed by state-of-the-art circuitry allowing relatively long life and great intelligibility. MK-7 BuddyLine operates on 8 AA alkaline batteries. The MK-7 BuddyLine and our ComRope is a great package that ensures a dive operation runs smoothly.

Specification Comparison of Hardwire Surface Units





Battery Life

20 hrs continuous use

6 hours continuous use with alkaline batteries

12 hours continuous use

Frequency Reponse

600 to 12,000 Hz

600 to 10,000 Hz

600 to 10,000 Hz

Output Power (watts)




Charging Time

14 hours with optional gel-cell batteries

14 hours with optional rechargeable batteries

14 hours with optional rechargeable batteries


Volume: Tender, Diver 1 & 2, Speaker, Cross Talk, PTT, Speaker On/Off, Select diver 1,2 or both

Volume: Tender, Diver 1, PTT

Volume: Tender, Diver 1, Diver 2


Heavy duty front panel or optional headset with boom microphone

Heavy duty, "Silver Bullet" front panel (10 full watts)

Headset with boom microphone

Low Battery Indicator

LED type battery meter


Audio Tone

Battery Type

(2) 6 volt lantern batteries (heavy duty) or Optional (2) RB-6V rechargeable batteries.

(16) AA alkaline batteries or 2 RB-11 NiMH battery packs

(8) AA alkaline batteries or optional RB-11 NiMH battery pack

Dimensions (W x H x D)

14" x 10.60"x 6.5"
14 lbs

9" x 7.85" x 3.7"
3.5 lbs

4.35" x 6.725" x 3.0"
1.5 lbs (w/ batteries)

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