OEM ODM E3pro 2.4G RF TWS in-ear Earbuds for TV Watching,TV Headphone Set with Optical 3.5MM Transmitter Charging Dock

Headset Model: E3pro

Main Chip: REALTEK 8753BFE

Bluetooth Version: 2.4G private protocol, one‑to‑one

Bluetooth Decoding Format: 2.4G private protocol, one‑to‑one

Playback Time: Approx. 5 hours per single charge

Effective Working Distance: >10m (＞3m when ears are covered by both hands)

Pairing: Pre‑paired for shipment as complete set

Operating Temperature: -10 to +50℃

Storage Temperature: -20 to 60℃

Battery Type: Lithium‑ion Battery

Battery Capacity: 50mAh

Full Charging Time: Approx. 2 hours

Charging Interface: Charge inside the transmitter

Charging Voltage: 5V

Charging Current: Approx. 30mA (full charge in approx. 2 hours)

Speaker Size: Φ8 mm

Speaker Frequency Response: 20‑20KHZ

Call MIC Type(Voice): No call function

Transmitter Model: E3pro

Main Chip: REALTEK 8753BAU

Bluetooth Version: 2.4G private protocol, one‑to‑one

Bluetooth Decoding Format: 2.4G private protocol, one‑to‑one

Playback Time: Direct power supply

Effective Working Distance: >10m

Pairing Name: Pre‑paired before shipment, plug‑and‑play upon power‑on, no manual pairing required

Operating Temperature: -10 to +50℃

Storage Temperature: -20 to 60℃

Input Interface: 3.5mm in, Optical in

Output Interface: 3.5mm out, Optical out

Special Function: TX+BYPASS function. Under transmit mode, it can connect to bluetooth headset meanwhile output audio via wire to TV soundbar speaker

TWS Bluetooth Headset: 1 pair

Bluetooth Audio Transmitter: 1pcs

USB Power Adapter: 1pcs

User Manual: 1pcs

USB‑A male to Type‑C male charging & data cable: 1pcs

Optical cable: 1pcs

3.5mm‑3.5mm male‑to‑male audio cable: 1pcs

3.5mm‑RCA male‑to‑male audio cable: 1pcs