SmallRig S70 Wireless Microphone Set Includes 2 transmitters and 9 silicone covers

The built-in microphone on your camera or cell phone mainly picks up ambient noise: echoes, street noise, wind. The farther away you stand, the more your voice gets drowned out. A lavalier microphone solves this problem because it’s positioned right where you’re speaking. The SmallRig S70 comes with two transmitters for a conversation between two people, receivers for your phone and camera, and nine colored covers so the transmitter matches your outfit instead of standing out.

• Two transmitters included: record two people at the same time
• Nine silicone covers in nine colors included
• Two receivers: USB-C for your phone, 3.5 mm for your camera
• 24-bit / 48 kHz, auto-limiter to prevent clipping
• 8 hours of continuous use, over 40 hours with the charging case
• Transmitter without a logo; visible part measures only about 29 x 9 mm

Two transmitters, nine colors, one set

Two transmitters for a conversation between two people

Both transmitters transmit to the same receiver. This lets you record an interview or a conversation without having to buy a second set. Using the three mixing modes, you can choose whether both voices are recorded on a single track, separated in stereo, or recorded as a safety track at a lower volume in case someone speaks too loudly.

Nine cases to match your outfit

The set includes nine silicone cases in black, gray, white, army green, khaki, red, light blue, light pink, and light yellow. Wear white on a white shirt, light blue on a denim jacket. For a two-person interview, assign each transmitter its own color—that way, you’ll know immediately during editing which track belongs to whom. The soft silicone is gentle on both fabric and skin.

Logo-free and nearly invisible

The transmitter is designed to be partially concealed: A clip made of Nitinol, a shape-memory alloy, holds it behind the fabric; only a section measuring approximately 29 x 9 mm remains visible. The housing is intentionally logo-free, so no third-party brand distracts the camera. Weighing just 8.8 g, it doesn’t pull on your collar, and you don’t have to pin anything through your shirt.

Here’s what it looks like in everyday life

Outdoor interview

Two transmitters on the lapel, a windscreen attached, and the receiver in the camera’s hot shoe. The auto-limiter cuts off volume spikes when someone laughs, and the three-stage noise reduction reduces background traffic noise.

Vlogging and Livestreaming with Your Phone

Plug the USB-C receiver into your phone, attach the transmitter to your jacket, and you’re good to go. Over 40 hours of battery life with the charging case is enough for two to three days of shooting without having to worry about finding a power outlet.

What You Should Know Before Ordering

For Android Phones with USB-C and Cameras

SmallRig lists compatible devices as Android phones and tablets with USB-C, cameras with a 3.5-mm input, and computers via USB. The iPhone is explicitly not listed. If you use an iPhone, give us a quick call before ordering, and we’ll check compatibility for your model.

The charging case provides 40 hours of runtime

The transmitter itself runs for about 8 hours straight. The total of over 40 hours is achieved because the charging case recharges the transmitters multiple times in between. One charge is enough for a long day of shooting; the case is your backup power source.

Insta360 and DJI only on select models

The set generally works with cameras that have a 3.5-mm input. For Insta360 and the DJI Osmo series, the USB-C connection works only with certain models, not all of them. Check compatibility for your camera, or give us a call. You can find more microphones in the Microphones category.

Technical Details at a Glance

• Product Type: Wireless clip-on microphone set, color: black
• Audio: 24-bit / 48 kHz, signal-to-noise ratio 70 dB, max. 120 dB SPL
• Battery life: approx. 8 hours, over 40 hours with charging case
• Sound profiles: 9 EQ presets (including male voice, female voice, vocals, ambient)
• Processing: 3 levels of noise reduction, 5 levels of gain, auto-limiter
• Mixing modes: Mono, Safety Track, Stereo
• Transmitter: 8.8 g, visible part approx. 29 x 9 mm, Nitinol clip, no logo
• Charging case: 94 x 52 x 40 mm, 129 g
• Silicone cases: 31.6 x 10.8 mm each, 1.5 g, Shore hardness 60
• Material: ABS/PC, Nitinol, silicone

Package Contents

• 1 x Charging case
• 2 x Transmitters (TX)
• 1 x USB-C receiver for smartphone
• 1 x Receiver for camera
• 9 x Silicone cases (one of each color)
• 2 x fur windshields
• 1 x USB-C charging cable
• 1 x 3.5-mm audio cable
• 1 x carrying case
• 1 x user manual